From cc73a837d95c6f2516628f88095ba7f63c723daa Mon Sep 17 00:00:00 2001
From: Sebastian Silbermann <sebastian.silbermann@klarna.com>
Date: Sat, 6 Jan 2024 13:43:14 +0100
Subject: [PATCH 1/6] Ensure Apple Silicon support in attribute-behavior
 fixture

---
 fixtures/attribute-behavior/package.json |   3 +
 fixtures/attribute-behavior/yarn.lock    | 170 ++++-------------------
 2 files changed, 33 insertions(+), 140 deletions(-)

diff --git a/fixtures/attribute-behavior/package.json b/fixtures/attribute-behavior/package.json
index 1bd16d5655dc0..67464ada094b4 100644
--- a/fixtures/attribute-behavior/package.json
+++ b/fixtures/attribute-behavior/package.json
@@ -10,6 +10,9 @@
     "react-scripts": "1.0.11",
     "react-virtualized": "^9.9.0"
   },
+  "resolutions": {
+    "fsevents": "1.2.13"
+  },
   "scripts": {
     "predev":
       "cp ../../build/oss-experimental/react/umd/react.development.js public/ && cp ../../build/oss-experimental/react-dom/umd/react-dom.development.js public/ && cp ../../build/oss-experimental/react-dom/umd/react-dom-server-legacy.browser.development.js public/",
diff --git a/fixtures/attribute-behavior/yarn.lock b/fixtures/attribute-behavior/yarn.lock
index 4359d28cc39d3..7529b7a098a9c 100644
--- a/fixtures/attribute-behavior/yarn.lock
+++ b/fixtures/attribute-behavior/yarn.lock
@@ -6,10 +6,6 @@ abab@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/abab/-/abab-1.0.3.tgz#b81de5f7274ec4e756d797cd834f303642724e5d"
 
-abbrev@1:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.0.tgz#d0554c2256636e2f56e7c2e5ad183f859428d81f"
-
 accepts@~1.3.3:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.4.tgz#86246758c7dd6d21a6474ff084a4740ec05eb21f"
@@ -144,17 +140,6 @@ append-transform@^0.4.0:
   dependencies:
     default-require-extensions "^1.0.0"
 
-aproba@^1.0.3:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.1.2.tgz#45c6629094de4e96f693ef7eab74ae079c240fc1"
-
-are-we-there-yet@~1.1.2:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz#bb5dca382bb94f05e15194373d16fd3ba1ca110d"
-  dependencies:
-    delegates "^1.0.0"
-    readable-stream "^2.0.6"
-
 argparse@^1.0.7:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.9.tgz#73d83bc263f86e97f8cc4f6bae1b0e90a7d22c86"
@@ -1036,11 +1021,12 @@ binary-extensions@^1.0.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.10.0.tgz#9aeb9a6c5e88638aad171e167f5900abe24835d0"
 
-block-stream@*:
-  version "0.0.9"
-  resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
+bindings@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
+  integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
   dependencies:
-    inherits "~2.0.0"
+    file-uri-to-path "1.0.0"
 
 bluebird@^3.4.7:
   version "3.5.0"
@@ -1536,10 +1522,6 @@ console-browserify@^1.1.0:
   dependencies:
     date-now "^0.1.4"
 
-console-control-strings@^1.0.0, console-control-strings@~1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
-
 constants-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
@@ -1887,10 +1869,6 @@ delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
 
-delegates@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
-
 depd@1.1.1, depd@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.1.tgz#5783b4e1c459f06fa5ca27f991f3d06e7a310359"
@@ -2583,6 +2561,11 @@ file-saver@^1.3.3:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/file-saver/-/file-saver-1.3.3.tgz#cdd4c44d3aa264eac2f68ec165bc791c34af1232"
 
+file-uri-to-path@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
+  integrity sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==
+
 filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
@@ -2722,29 +2705,13 @@ fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
 
-fsevents@1.1.2, fsevents@^1.0.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.2.tgz#3282b713fb3ad80ede0e9fcf4611b5aa6fc033f4"
+fsevents@1.1.2, fsevents@1.2.13, fsevents@^1.0.0:
+  version "1.2.13"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.13.tgz#f325cb0455592428bcf11b383370ef70e3bfcc38"
+  integrity sha512-oWb1Z6mkHIskLzEJ/XWX0srkpkTQ7vaopMQkyaEIoq0fmtFVxOthb8cCxeT+p3ynTdkk/RZwbgG4brR5BeWECw==
   dependencies:
-    nan "^2.3.0"
-    node-pre-gyp "^0.6.36"
-
-fstream-ignore@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
-  dependencies:
-    fstream "^1.0.0"
-    inherits "2"
-    minimatch "^3.0.0"
-
-fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
-  version "1.0.11"
-  resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
-  dependencies:
-    graceful-fs "^4.1.2"
-    inherits "~2.0.0"
-    mkdirp ">=0.5 0"
-    rimraf "2"
+    bindings "^1.5.0"
+    nan "^2.12.1"
 
 function-bind@^1.0.2, function-bind@^1.1.0:
   version "1.1.0"
@@ -2754,19 +2721,6 @@ functional-red-black-tree@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
 
-gauge@~2.7.3:
-  version "2.7.4"
-  resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
-  dependencies:
-    aproba "^1.0.3"
-    console-control-strings "^1.0.0"
-    has-unicode "^2.0.0"
-    object-assign "^4.1.0"
-    signal-exit "^3.0.0"
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
-    wide-align "^1.1.0"
-
 get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
@@ -2935,10 +2889,6 @@ has-flag@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
 
-has-unicode@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
-
 has@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
@@ -3159,7 +3109,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
+inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
@@ -4190,7 +4140,7 @@ minimatch@3.0.3:
   dependencies:
     brace-expansion "^1.0.0"
 
-minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
+minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -4208,7 +4158,7 @@ minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
 
-mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
+mkdirp@0.5.1, mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
@@ -4233,9 +4183,10 @@ mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
-nan@^2.3.0:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.6.2.tgz#e4ff34e6c95fdfb5aecc08de6596f43605a7db45"
+nan@^2.12.1:
+  version "2.18.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.18.0.tgz#26a6faae7ffbeb293a39660e88a76b82e30b7554"
+  integrity sha512-W7tfG7vMOGtD30sHoZSSc/JVYiyDPEyQVso/Zz+/uQd0B0L46gtC+pHha5FFMRpil6fm/AoEcRWyOVi4+E/f8w==
 
 natural-compare@^1.4.0:
   version "1.4.0"
@@ -4313,31 +4264,10 @@ node-notifier@^5.0.2:
     shellwords "^0.1.0"
     which "^1.2.12"
 
-node-pre-gyp@^0.6.36:
-  version "0.6.36"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.36.tgz#db604112cb74e0d477554e9b505b17abddfab786"
-  dependencies:
-    mkdirp "^0.5.1"
-    nopt "^4.0.1"
-    npmlog "^4.0.2"
-    rc "^1.1.7"
-    request "^2.81.0"
-    rimraf "^2.6.1"
-    semver "^5.3.0"
-    tar "^2.2.1"
-    tar-pack "^3.4.0"
-
 node-status-codes@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/node-status-codes/-/node-status-codes-1.0.0.tgz#5ae5541d024645d32a58fcddc9ceecea7ae3ac2f"
 
-nopt@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
-  dependencies:
-    abbrev "1"
-    osenv "^0.1.4"
-
 normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
@@ -4372,15 +4302,6 @@ npm-run-path@^2.0.0:
   dependencies:
     path-key "^2.0.0"
 
-npmlog@^4.0.2:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
-  dependencies:
-    are-we-there-yet "~1.1.2"
-    console-control-strings "~1.1.0"
-    gauge "~2.7.3"
-    set-blocking "~2.0.0"
-
 nth-check@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.1.tgz#9929acdf628fc2c41098deab82ac580cf149aae4"
@@ -4436,7 +4357,7 @@ on-headers@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
 
-once@^1.3.0, once@^1.3.3, once@^1.4.0:
+once@^1.3.0, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   dependencies:
@@ -4511,7 +4432,7 @@ os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
-osenv@^0.1.0, osenv@^0.1.4:
+osenv@^0.1.0:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.4.tgz#42fe6d5953df06c8064be6f176c3d05aaaa34644"
   dependencies:
@@ -5146,7 +5067,7 @@ range-parser@^1.0.3, range-parser@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
 
-rc@^1.0.1, rc@^1.1.6, rc@^1.1.7:
+rc@^1.0.1, rc@^1.1.6:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.1.tgz#2e03e8e42ee450b8cb3dce65be1bf8974e1dfd95"
   dependencies:
@@ -5308,7 +5229,7 @@ readable-stream@1.0:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.2.2, readable-stream@^2.2.6, readable-stream@^2.2.9:
+readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.2.2, readable-stream@^2.2.6, readable-stream@^2.2.9:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
   dependencies:
@@ -5470,7 +5391,7 @@ repeating@^2.0.0:
   dependencies:
     is-finite "^1.0.0"
 
-request@^2.79.0, request@^2.81.0:
+request@^2.79.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
   dependencies:
@@ -5554,7 +5475,7 @@ right-align@^0.1.1:
   dependencies:
     align-text "^0.1.1"
 
-rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.6.1:
+rimraf@^2.2.8, rimraf@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"
   dependencies:
@@ -5680,7 +5601,7 @@ serviceworker-cache-polyfill@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/serviceworker-cache-polyfill/-/serviceworker-cache-polyfill-4.0.0.tgz#de19ee73bef21ab3c0740a37b33db62464babdeb"
 
-set-blocking@^2.0.0, set-blocking@~2.0.0:
+set-blocking@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
 
@@ -6048,27 +5969,6 @@ tapable@^0.2.7:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
 
-tar-pack@^3.4.0:
-  version "3.4.0"
-  resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.0.tgz#23be2d7f671a8339376cbdb0b8fe3fdebf317984"
-  dependencies:
-    debug "^2.2.0"
-    fstream "^1.0.10"
-    fstream-ignore "^1.0.5"
-    once "^1.3.3"
-    readable-stream "^2.1.4"
-    rimraf "^2.5.1"
-    tar "^2.2.1"
-    uid-number "^0.0.6"
-
-tar@^2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
-  dependencies:
-    block-stream "*"
-    fstream "^1.0.2"
-    inherits "2"
-
 test-exclude@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.1.1.tgz#4d84964b0966b0087ecc334a2ce002d3d9341e26"
@@ -6223,10 +6123,6 @@ uglifyjs-webpack-plugin@^0.4.6:
     uglify-js "^2.8.29"
     webpack-sources "^1.0.1"
 
-uid-number@^0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
-
 uniq@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/uniq/-/uniq-1.0.1.tgz#b31c5ae8254844a3a8281541ce2b04b865a734ff"
@@ -6523,12 +6419,6 @@ which@^1.2.12, which@^1.2.14, which@^1.2.9:
   dependencies:
     isexe "^2.0.0"
 
-wide-align@^1.1.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
-  dependencies:
-    string-width "^1.0.2"
-
 widest-line@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/widest-line/-/widest-line-1.0.0.tgz#0c09c85c2a94683d0d7eaf8ee097d564bf0e105c"

From 033fce19a2e7c98300f3b99b6806f0b3e7a720ee Mon Sep 17 00:00:00 2001
From: Sebastian Silbermann <sebastian.silbermann@klarna.com>
Date: Sat, 6 Jan 2024 17:13:49 +0100
Subject: [PATCH 2/6] Use modern rendering APIs for attribute-behavior fixture

---
 fixtures/attribute-behavior/.gitignore        |  2 +-
 .../AttributeTableSnapshot.md                 | 40 +++++------
 fixtures/attribute-behavior/package.json      |  2 +-
 fixtures/attribute-behavior/src/App.js        | 68 ++++++++++++++-----
 4 files changed, 72 insertions(+), 40 deletions(-)

diff --git a/fixtures/attribute-behavior/.gitignore b/fixtures/attribute-behavior/.gitignore
index 9190def2d174c..49c5a75db9401 100644
--- a/fixtures/attribute-behavior/.gitignore
+++ b/fixtures/attribute-behavior/.gitignore
@@ -10,7 +10,7 @@
 /build
 /public/react.development.js
 /public/react-dom.development.js
-/public/react-dom-server-legacy.browser.development.js
+/public/react-dom-server.browser.development.js
 
 # misc
 .DS_Store
diff --git a/fixtures/attribute-behavior/AttributeTableSnapshot.md b/fixtures/attribute-behavior/AttributeTableSnapshot.md
index 89e126ba234cf..d69d96564f907 100644
--- a/fixtures/attribute-behavior/AttributeTableSnapshot.md
+++ b/fixtures/attribute-behavior/AttributeTableSnapshot.md
@@ -294,7 +294,7 @@
 | `action=(string 'on')`| (changed)| `"http://localhost:3000/on"` |
 | `action=(string 'off')`| (changed)| `"http://localhost:3000/off"` |
 | `action=(symbol)`| (initial, warning)| `"http://localhost:3000/"` |
-| `action=(function)`| (initial, warning)| `"http://localhost:3000/"` |
+| `action=(function)`| (changed, ssr error, ssr mismatch)| `"javascript:throw new Error('A React form was unexpectedly submitted. If you called form.submit() manually, consider using form.requestSubmit() instead. If you\'re trying to use event.stopPropagation() in a submit event handler, consider also calling event.preventDefault().')"` |
 | `action=(null)`| (initial)| `"http://localhost:3000/"` |
 | `action=(undefined)`| (initial)| `"http://localhost:3000/"` |
 
@@ -2568,8 +2568,8 @@
 | `defaultChecked=(string 'false')`| (changed)| `<boolean: true>` |
 | `defaultChecked=(string 'on')`| (changed)| `<boolean: true>` |
 | `defaultChecked=(string 'off')`| (changed)| `<boolean: true>` |
-| `defaultChecked=(symbol)`| (changed, ssr mismatch)| `<boolean: true>` |
-| `defaultChecked=(function)`| (changed, ssr mismatch)| `<boolean: true>` |
+| `defaultChecked=(symbol)`| (initial)| `<boolean: false>` |
+| `defaultChecked=(function)`| (initial)| `<boolean: false>` |
 | `defaultChecked=(null)`| (initial)| `<boolean: false>` |
 | `defaultChecked=(undefined)`| (initial)| `<boolean: false>` |
 
@@ -4176,25 +4176,25 @@
 ## `formAction` (on `<input>` inside `<div>`)
 | Test Case | Flags | Result |
 | --- | --- | --- |
-| `formAction=(string)`| (changed)| `"https://reactjs.com/"` |
-| `formAction=(empty string)`| (initial)| `"http://localhost:3000/"` |
-| `formAction=(array with string)`| (changed)| `"https://reactjs.com/"` |
-| `formAction=(empty array)`| (initial)| `"http://localhost:3000/"` |
-| `formAction=(object)`| (changed)| `"http://localhost:3000/result%20of%20toString()"` |
-| `formAction=(numeric string)`| (changed)| `"http://localhost:3000/42"` |
-| `formAction=(-1)`| (changed)| `"http://localhost:3000/-1"` |
-| `formAction=(0)`| (changed)| `"http://localhost:3000/0"` |
-| `formAction=(integer)`| (changed)| `"http://localhost:3000/1"` |
+| `formAction=(string)`| (changed, warning)| `"https://reactjs.com/"` |
+| `formAction=(empty string)`| (initial, warning)| `"http://localhost:3000/"` |
+| `formAction=(array with string)`| (changed, warning)| `"https://reactjs.com/"` |
+| `formAction=(empty array)`| (initial, warning)| `"http://localhost:3000/"` |
+| `formAction=(object)`| (changed, warning)| `"http://localhost:3000/result%20of%20toString()"` |
+| `formAction=(numeric string)`| (changed, warning)| `"http://localhost:3000/42"` |
+| `formAction=(-1)`| (changed, warning)| `"http://localhost:3000/-1"` |
+| `formAction=(0)`| (changed, warning)| `"http://localhost:3000/0"` |
+| `formAction=(integer)`| (changed, warning)| `"http://localhost:3000/1"` |
 | `formAction=(NaN)`| (changed, warning)| `"http://localhost:3000/NaN"` |
-| `formAction=(float)`| (changed)| `"http://localhost:3000/99.99"` |
+| `formAction=(float)`| (changed, warning)| `"http://localhost:3000/99.99"` |
 | `formAction=(true)`| (initial, warning)| `"http://localhost:3000/"` |
 | `formAction=(false)`| (initial, warning)| `"http://localhost:3000/"` |
-| `formAction=(string 'true')`| (changed)| `"http://localhost:3000/true"` |
-| `formAction=(string 'false')`| (changed)| `"http://localhost:3000/false"` |
-| `formAction=(string 'on')`| (changed)| `"http://localhost:3000/on"` |
-| `formAction=(string 'off')`| (changed)| `"http://localhost:3000/off"` |
+| `formAction=(string 'true')`| (changed, warning)| `"http://localhost:3000/true"` |
+| `formAction=(string 'false')`| (changed, warning)| `"http://localhost:3000/false"` |
+| `formAction=(string 'on')`| (changed, warning)| `"http://localhost:3000/on"` |
+| `formAction=(string 'off')`| (changed, warning)| `"http://localhost:3000/off"` |
 | `formAction=(symbol)`| (initial, warning)| `"http://localhost:3000/"` |
-| `formAction=(function)`| (initial, warning)| `"http://localhost:3000/"` |
+| `formAction=(function)`| (changed, warning, ssr error, ssr mismatch)| `"javascript:throw new Error('A React form was unexpectedly submitted. If you called form.submit() manually, consider using form.requestSubmit() instead. If you\'re trying to use event.stopPropagation() in a submit event handler, consider also calling event.preventDefault().')"` |
 | `formAction=(null)`| (initial)| `"http://localhost:3000/"` |
 | `formAction=(undefined)`| (initial)| `"http://localhost:3000/"` |
 
@@ -5052,7 +5052,7 @@
 | Test Case | Flags | Result |
 | --- | --- | --- |
 | `href=(string)`| (changed)| `"https://reactjs.com/"` |
-| `href=(empty string)`| (changed)| `"http://localhost:3000/"` |
+| `href=(empty string)`| (initial, warning)| `<empty string>` |
 | `href=(array with string)`| (changed)| `"https://reactjs.com/"` |
 | `href=(empty array)`| (changed)| `"http://localhost:3000/"` |
 | `href=(object)`| (changed)| `"http://localhost:3000/result%20of%20toString()"` |
@@ -9877,7 +9877,7 @@
 | Test Case | Flags | Result |
 | --- | --- | --- |
 | `src=(string)`| (changed)| `"https://reactjs.com/"` |
-| `src=(empty string)`| (changed)| `"http://localhost:3000/"` |
+| `src=(empty string)`| (initial, warning)| `<empty string>` |
 | `src=(array with string)`| (changed)| `"https://reactjs.com/"` |
 | `src=(empty array)`| (changed)| `"http://localhost:3000/"` |
 | `src=(object)`| (changed)| `"http://localhost:3000/result%20of%20toString()"` |
diff --git a/fixtures/attribute-behavior/package.json b/fixtures/attribute-behavior/package.json
index 67464ada094b4..345fd34a8d9fe 100644
--- a/fixtures/attribute-behavior/package.json
+++ b/fixtures/attribute-behavior/package.json
@@ -15,7 +15,7 @@
   },
   "scripts": {
     "predev":
-      "cp ../../build/oss-experimental/react/umd/react.development.js public/ && cp ../../build/oss-experimental/react-dom/umd/react-dom.development.js public/ && cp ../../build/oss-experimental/react-dom/umd/react-dom-server-legacy.browser.development.js public/",
+      "cp ../../build/oss-experimental/react/umd/react.development.js public/ && cp ../../build/oss-experimental/react-dom/umd/react-dom.development.js public/ && cp ../../build/oss-experimental/react-dom/umd/react-dom-server.browser.development.js public/",
     "dev": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test --env=jsdom",
diff --git a/fixtures/attribute-behavior/src/App.js b/fixtures/attribute-behavior/src/App.js
index db77eba907c5a..ad6e863e1fa00 100644
--- a/fixtures/attribute-behavior/src/App.js
+++ b/fixtures/attribute-behavior/src/App.js
@@ -213,13 +213,32 @@ function getCanonicalizedValue(value) {
 
 let _didWarn = false;
 function warn(str) {
-  if (str.includes('ReactDOM.render is no longer supported')) {
-    return;
-  }
   _didWarn = true;
 }
+
+/**
+ * @param {import('react-dom/server')} serverRenderer
+ */
+async function renderToString(serverRenderer, element) {
+  let didError = false;
+  const stream = await serverRenderer.renderToReadableStream(element, {
+    onError(error) {
+      didError = true;
+      console.error(error);
+    },
+  });
+  await stream.allReady;
+
+  if (didError) {
+    throw new Error('The above error occurred while rendering to string.');
+  }
+
+  const response = new Response(stream);
+  return response.text();
+}
+
 const UNKNOWN_HTML_TAGS = new Set(['keygen', 'time', 'command']);
-function getRenderedAttributeValue(
+async function getRenderedAttributeValue(
   react,
   renderer,
   serverRenderer,
@@ -283,12 +302,21 @@ function getRenderedAttributeValue(
   _didWarn = false;
   try {
     let container = createContainer();
-    renderer.render(react.createElement(tagName, baseProps), container);
+    renderer.flushSync(() => {
+      renderer
+        .createRoot(container)
+        .render(react.createElement(tagName, baseProps));
+    });
     defaultValue = read(container.lastChild);
     canonicalDefaultValue = getCanonicalizedValue(defaultValue);
 
     container = createContainer();
-    renderer.render(react.createElement(tagName, props), container);
+
+    renderer.flushSync(() => {
+      renderer
+        .createRoot(container)
+        .render(react.createElement(tagName, props));
+    });
     result = read(container.lastChild);
     canonicalResult = getCanonicalizedValue(result);
     didWarn = _didWarn;
@@ -305,19 +333,22 @@ function getRenderedAttributeValue(
   try {
     let container;
     if (containerTagName === 'document') {
-      const html = serverRenderer.renderToString(
+      const html = await renderToString(
+        serverRenderer,
         react.createElement(tagName, props)
       );
       container = createContainer();
       container.innerHTML = html;
     } else if (containerTagName === 'head') {
-      const html = serverRenderer.renderToString(
+      const html = await renderToString(
+        serverRenderer,
         react.createElement(tagName, props)
       );
       container = createContainer();
       container.innerHTML = html;
     } else {
-      const html = serverRenderer.renderToString(
+      const html = await renderToString(
+        serverRenderer,
         react.createElement(
           containerTagName,
           null,
@@ -326,7 +357,8 @@ function getRenderedAttributeValue(
       );
       const outerContainer = document.createElement('div');
       outerContainer.innerHTML = html;
-      container = outerContainer.firstChild;
+      // Float may prepend `<link />`
+      container = outerContainer.lastChild;
     }
 
     if (
@@ -396,8 +428,8 @@ function getRenderedAttributeValue(
   };
 }
 
-function prepareState(initGlobals) {
-  function getRenderedAttributeValues(attribute, type) {
+async function prepareState(initGlobals) {
+  async function getRenderedAttributeValues(attribute, type) {
     const {
       ReactStable,
       ReactDOMStable,
@@ -406,14 +438,14 @@ function prepareState(initGlobals) {
       ReactDOMNext,
       ReactDOMServerNext,
     } = initGlobals(attribute, type);
-    const reactStableValue = getRenderedAttributeValue(
+    const reactStableValue = await getRenderedAttributeValue(
       ReactStable,
       ReactDOMStable,
       ReactDOMServerStable,
       attribute,
       type
     );
-    const reactNextValue = getRenderedAttributeValue(
+    const reactNextValue = await getRenderedAttributeValue(
       ReactNext,
       ReactDOMNext,
       ReactDOMServerNext,
@@ -451,7 +483,7 @@ function prepareState(initGlobals) {
     let hasSameBehaviorForAll = true;
     let rowPatternHash = '';
     for (let type of types) {
-      const result = getRenderedAttributeValues(attribute, type);
+      const result = await getRenderedAttributeValues(attribute, type);
       results.set(type.name, result);
       if (!result.hasSameBehavior) {
         hasSameBehaviorForAll = false;
@@ -772,10 +804,10 @@ class App extends React.Component {
       ReactDOMStable:
         'https://unpkg.com/react-dom@latest/umd/react-dom.development.js',
       ReactDOMServerStable:
-        'https://unpkg.com/react-dom@latest/umd/react-dom-server-legacy.browser.development.js',
+        'https://unpkg.com/react-dom@latest/umd/react-dom-server.browser.development.js',
       ReactNext: '/react.development.js',
       ReactDOMNext: '/react-dom.development.js',
-      ReactDOMServerNext: '/react-dom-server-legacy.browser.development.js',
+      ReactDOMServerNext: '/react-dom-server.browser.development.js',
     };
     const codePromises = Object.values(sources).map(src =>
       fetch(src).then(res => res.text())
@@ -820,7 +852,7 @@ class App extends React.Component {
       return globals;
     }
 
-    const {table, rowPatternHashes} = prepareState(initGlobals);
+    const {table, rowPatternHashes} = await prepareState(initGlobals);
     document.title = 'Ready';
 
     this.setState({

From c9b859ade4d22aa103bb2f07a1117ebcec917e48 Mon Sep 17 00:00:00 2001
From: eps1lon <silbermann.sebastian@gmail.com>
Date: Sun, 17 Jul 2022 18:17:47 +0200
Subject: [PATCH 3/6] Test `aria-hidden`

---
 .../AttributeTableSnapshot.md                 | 25 +++++++++++++++++++
 fixtures/attribute-behavior/src/attributes.js |  1 +
 2 files changed, 26 insertions(+)

diff --git a/fixtures/attribute-behavior/AttributeTableSnapshot.md b/fixtures/attribute-behavior/AttributeTableSnapshot.md
index d69d96564f907..e474971cad57f 100644
--- a/fixtures/attribute-behavior/AttributeTableSnapshot.md
+++ b/fixtures/attribute-behavior/AttributeTableSnapshot.md
@@ -648,6 +648,31 @@
 | `aria-=(null)`| (initial, warning)| `<null>` |
 | `aria-=(undefined)`| (initial, warning)| `<null>` |
 
+## `aria-hidden` (on `<div>` inside `<div>`)
+| Test Case | Flags | Result |
+| --- | --- | --- |
+| `aria-hidden=(string)`| (changed)| `"a string"` |
+| `aria-hidden=(empty string)`| (changed)| `<empty string>` |
+| `aria-hidden=(array with string)`| (changed)| `"string"` |
+| `aria-hidden=(empty array)`| (changed)| `<empty string>` |
+| `aria-hidden=(object)`| (changed)| `"result of toString()"` |
+| `aria-hidden=(numeric string)`| (changed)| `"42"` |
+| `aria-hidden=(-1)`| (changed)| `"-1"` |
+| `aria-hidden=(0)`| (changed)| `"0"` |
+| `aria-hidden=(integer)`| (changed)| `"1"` |
+| `aria-hidden=(NaN)`| (changed)| `"NaN"` |
+| `aria-hidden=(float)`| (changed)| `"99.99"` |
+| `aria-hidden=(true)`| (changed)| `"true"` |
+| `aria-hidden=(false)`| (changed)| `"false"` |
+| `aria-hidden=(string 'true')`| (changed)| `"true"` |
+| `aria-hidden=(string 'false')`| (changed)| `"false"` |
+| `aria-hidden=(string 'on')`| (changed)| `"on"` |
+| `aria-hidden=(string 'off')`| (changed)| `"off"` |
+| `aria-hidden=(symbol)`| (initial)| `<null>` |
+| `aria-hidden=(function)`| (initial)| `<null>` |
+| `aria-hidden=(null)`| (initial)| `<null>` |
+| `aria-hidden=(undefined)`| (initial)| `<null>` |
+
 ## `aria-invalidattribute` (on `<div>` inside `<div>`)
 | Test Case | Flags | Result |
 | --- | --- | --- |
diff --git a/fixtures/attribute-behavior/src/attributes.js b/fixtures/attribute-behavior/src/attributes.js
index afd902d61d4c3..652f30ed072a9 100644
--- a/fixtures/attribute-behavior/src/attributes.js
+++ b/fixtures/attribute-behavior/src/attributes.js
@@ -119,6 +119,7 @@ const attributes = [
   },
   {name: 'aria', read: getAttribute('aria')},
   {name: 'aria-', read: getAttribute('aria-')},
+  {name: 'aria-hidden', read: getProperty('ariaHidden')},
   {name: 'aria-invalidattribute', read: getAttribute('aria-invalidattribute')},
   {name: 'as', tagName: 'link'},
   {

From 1aba5a257f6fbf579066d0475a0eb388716dfe7e Mon Sep 17 00:00:00 2001
From: eps1lon <silbermann.sebastian@gmail.com>
Date: Sun, 17 Jul 2022 17:59:16 +0200
Subject: [PATCH 4/6] Test `inputMode` with defined value

---
 .../AttributeTableSnapshot.md                 | 42 +++++++++----------
 fixtures/attribute-behavior/src/attributes.js |  2 +-
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/fixtures/attribute-behavior/AttributeTableSnapshot.md b/fixtures/attribute-behavior/AttributeTableSnapshot.md
index e474971cad57f..085d67d34f134 100644
--- a/fixtures/attribute-behavior/AttributeTableSnapshot.md
+++ b/fixtures/attribute-behavior/AttributeTableSnapshot.md
@@ -5526,27 +5526,27 @@
 ## `inputMode` (on `<input>` inside `<div>`)
 | Test Case | Flags | Result |
 | --- | --- | --- |
-| `inputMode=(string)`| (changed)| `"a string"` |
-| `inputMode=(empty string)`| (changed)| `<empty string>` |
-| `inputMode=(array with string)`| (changed)| `"string"` |
-| `inputMode=(empty array)`| (changed)| `<empty string>` |
-| `inputMode=(object)`| (changed)| `"result of toString()"` |
-| `inputMode=(numeric string)`| (changed)| `"42"` |
-| `inputMode=(-1)`| (changed)| `"-1"` |
-| `inputMode=(0)`| (changed)| `"0"` |
-| `inputMode=(integer)`| (changed)| `"1"` |
-| `inputMode=(NaN)`| (changed, warning)| `"NaN"` |
-| `inputMode=(float)`| (changed)| `"99.99"` |
-| `inputMode=(true)`| (initial, warning)| `<null>` |
-| `inputMode=(false)`| (initial, warning)| `<null>` |
-| `inputMode=(string 'true')`| (changed)| `"true"` |
-| `inputMode=(string 'false')`| (changed)| `"false"` |
-| `inputMode=(string 'on')`| (changed)| `"on"` |
-| `inputMode=(string 'off')`| (changed)| `"off"` |
-| `inputMode=(symbol)`| (initial, warning)| `<null>` |
-| `inputMode=(function)`| (initial, warning)| `<null>` |
-| `inputMode=(null)`| (initial)| `<null>` |
-| `inputMode=(undefined)`| (initial)| `<null>` |
+| `inputMode=(string)`| (initial)| `<empty string>` |
+| `inputMode=(empty string)`| (initial)| `<empty string>` |
+| `inputMode=(array with string)`| (initial)| `<empty string>` |
+| `inputMode=(empty array)`| (initial)| `<empty string>` |
+| `inputMode=(object)`| (initial)| `<empty string>` |
+| `inputMode=(numeric string)`| (initial)| `<empty string>` |
+| `inputMode=(-1)`| (initial)| `<empty string>` |
+| `inputMode=(0)`| (initial)| `<empty string>` |
+| `inputMode=(integer)`| (initial)| `<empty string>` |
+| `inputMode=(NaN)`| (initial, warning)| `<empty string>` |
+| `inputMode=(float)`| (initial)| `<empty string>` |
+| `inputMode=(true)`| (initial, warning)| `<empty string>` |
+| `inputMode=(false)`| (initial, warning)| `<empty string>` |
+| `inputMode=(string 'true')`| (initial)| `<empty string>` |
+| `inputMode=(string 'false')`| (initial)| `<empty string>` |
+| `inputMode=(string 'on')`| (initial)| `<empty string>` |
+| `inputMode=(string 'off')`| (initial)| `<empty string>` |
+| `inputMode=(symbol)`| (initial, warning)| `<empty string>` |
+| `inputMode=(function)`| (initial, warning)| `<empty string>` |
+| `inputMode=(null)`| (initial)| `<empty string>` |
+| `inputMode=(undefined)`| (initial)| `<empty string>` |
 
 ## `integrity` (on `<script>` inside `<div>`)
 | Test Case | Flags | Result |
diff --git a/fixtures/attribute-behavior/src/attributes.js b/fixtures/attribute-behavior/src/attributes.js
index 652f30ed072a9..fbf8b1635cffa 100644
--- a/fixtures/attribute-behavior/src/attributes.js
+++ b/fixtures/attribute-behavior/src/attributes.js
@@ -978,7 +978,7 @@ const attributes = [
   {name: 'initialChecked', read: getAttribute('initialchecked')},
   {name: 'initialValue', read: getAttribute('initialvalue')},
   {name: 'inlist', read: getAttribute('inlist')},
-  {name: 'inputMode', tagName: 'input', read: getAttribute('inputmode')}, // TODO: Should use property but it's not implemented in Chrome
+  {name: 'inputMode', tagName: 'input'},
   {name: 'integrity', tagName: 'script'},
   {
     name: 'intercept',

From 846dd5d013c9fd259e78e57675bae993b825bdcd Mon Sep 17 00:00:00 2001
From: eps1lon <silbermann.sebastian@gmail.com>
Date: Sun, 17 Jul 2022 17:56:42 +0200
Subject: [PATCH 5/6] Test `inert`

---
 .../AttributeTableSnapshot.md                 | 25 +++++++++++++++++++
 fixtures/attribute-behavior/src/attributes.js |  1 +
 2 files changed, 26 insertions(+)

diff --git a/fixtures/attribute-behavior/AttributeTableSnapshot.md b/fixtures/attribute-behavior/AttributeTableSnapshot.md
index 085d67d34f134..0adb07ad60e82 100644
--- a/fixtures/attribute-behavior/AttributeTableSnapshot.md
+++ b/fixtures/attribute-behavior/AttributeTableSnapshot.md
@@ -5423,6 +5423,31 @@
 | `in=(null)`| (initial)| `<null>` |
 | `in=(undefined)`| (initial)| `<null>` |
 
+## `inert` (on `<div>` inside `<div>`)
+| Test Case | Flags | Result |
+| --- | --- | --- |
+| `inert=(string)`| (changed)| `<boolean: true>` |
+| `inert=(empty string)`| (changed)| `<boolean: true>` |
+| `inert=(array with string)`| (changed)| `<boolean: true>` |
+| `inert=(empty array)`| (changed)| `<boolean: true>` |
+| `inert=(object)`| (changed)| `<boolean: true>` |
+| `inert=(numeric string)`| (changed)| `<boolean: true>` |
+| `inert=(-1)`| (changed)| `<boolean: true>` |
+| `inert=(0)`| (changed)| `<boolean: true>` |
+| `inert=(integer)`| (changed)| `<boolean: true>` |
+| `inert=(NaN)`| (changed, warning)| `<boolean: true>` |
+| `inert=(float)`| (changed)| `<boolean: true>` |
+| `inert=(true)`| (initial, warning)| `<boolean: false>` |
+| `inert=(false)`| (initial, warning)| `<boolean: false>` |
+| `inert=(string 'true')`| (changed)| `<boolean: true>` |
+| `inert=(string 'false')`| (changed)| `<boolean: true>` |
+| `inert=(string 'on')`| (changed)| `<boolean: true>` |
+| `inert=(string 'off')`| (changed)| `<boolean: true>` |
+| `inert=(symbol)`| (initial, warning)| `<boolean: false>` |
+| `inert=(function)`| (initial, warning)| `<boolean: false>` |
+| `inert=(null)`| (initial)| `<boolean: false>` |
+| `inert=(undefined)`| (initial)| `<boolean: false>` |
+
 ## `in2` (on `<feBlend>` inside `<svg>`)
 | Test Case | Flags | Result |
 | --- | --- | --- |
diff --git a/fixtures/attribute-behavior/src/attributes.js b/fixtures/attribute-behavior/src/attributes.js
index fbf8b1635cffa..62509ad41aec9 100644
--- a/fixtures/attribute-behavior/src/attributes.js
+++ b/fixtures/attribute-behavior/src/attributes.js
@@ -969,6 +969,7 @@ const attributes = [
     containerTagName: 'svg',
     tagName: 'feBlend',
   },
+  {name: 'inert'},
   {
     name: 'in2',
     read: getSVGProperty('in2'),

From ea306624805a7df6b556c4ac13d11b8ec8e7e8e7 Mon Sep 17 00:00:00 2001
From: eps1lon <silbermann.sebastian@gmail.com>
Date: Sun, 17 Jul 2022 17:53:16 +0200
Subject: [PATCH 6/6] Test hidden="until-found"

---
 fixtures/attribute-behavior/src/attributes.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fixtures/attribute-behavior/src/attributes.js b/fixtures/attribute-behavior/src/attributes.js
index 62509ad41aec9..b774c12446649 100644
--- a/fixtures/attribute-behavior/src/attributes.js
+++ b/fixtures/attribute-behavior/src/attributes.js
@@ -906,7 +906,7 @@ const attributes = [
     read: getSVGProperty('height'),
     overrideStringValue: '100%',
   },
-  {name: 'hidden'},
+  {name: 'hidden', overrideStringValue: 'until-found'},
   {name: 'high', tagName: 'meter'},
   {
     name: 'horiz-adv-x',