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src: allow embedders to disable esm loader #34060

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src: allow embedders to disable esm loader #34060

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codebytere
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@codebytere codebytere commented Jun 26, 2020 •
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This PR addresses a recent embedder-specific issue Electron is facing.

Blink has its own independent ESM loader, which is set up in the renderer process of Electron. When ESM was unilaterally unflagged, this meant that there would be two competing ESM loaders in the same process, both of which made assumptions about code being run.

For example, what can happen is that the devtools windows uses Node.js' implementation of the esmodule loader, which is at present incapable of loading modules from URLs (for good reason). This causes a bunch of devtools failures. There's no real way to specifically enable sandbox (and therefore force the Blink loader to take precedence) for devtools only, since at the time we're calling CreateContentRendererClient() we don't know what url we're loading (and therefore can't verify it's devtools or not). Thus, it makes more sense to allow embedders to specify that we don't want to register the ESM loader when creating an Environment via flag.

I also considered adding a new cli flag and just checking it via getOptionValue in pre_execution.js, but i think that (after chatting a bit with Anna) since this use case is quite specific to embedders that it makes more sense to make it an EnvironmentFlag. The only thing i wasn't sure of here was where specifically to expose it. I chose node_options but welcome any feedback or alternate preferences.

cc @addaleax

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines

@codebytere codebytere requested a review from addaleax June 26, 2020 01:22
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. labels Jun 26, 2020
richardlau
richardlau reviewed Jun 26, 2020
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devsnek commented Jun 26, 2020

Is it possible to add a test for this?

@codebytere codebytere force-pushed the allow-disabling-esm-loader branch 2 times, most recently from 2e1a311 to a5de41e Compare June 27, 2020 01:50
@codebytere codebytere force-pushed the allow-disabling-esm-loader branch from a5de41e to 40acad0 Compare June 27, 2020 02:20
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codebytere commented Jun 27, 2020 •
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@devsnek @addaleax i added two tests - i couldn't figure out how to do it any more simply so feel free to suggest alternatives or ways to simplify!

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nodejs-github-bot commented Jun 27, 2020 •
edited by addaleax
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CI: https://ci.nodejs.org/job/node-test-pull-request/32116/ (:yellow_heart:)

@addaleax addaleax added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. embedding Issues and PRs related to embedding Node.js in another project. labels Jun 27, 2020
@codebytere codebytere mentioned this pull request Jun 29, 2020
Merged
codebytere added a commit that referenced this pull request Jun 29, 2020
@codebytere
src: allow embedders to disable esm loader
c23d2fd 
PR-URL: #34060
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
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Landed in c23d2fd

@codebytere codebytere closed this Jun 29, 2020
@codebytere codebytere deleted the allow-disabling-esm-loader branch June 29, 2020 16:12
@codebytere codebytere mentioned this pull request Jun 29, 2020
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3 tasks
@addaleax addaleax mentioned this pull request Jul 14, 2020
Closed
4 tasks
@addaleax addaleax added the semver-minor PRs that contain new features and should be released in the next minor version. label Jul 14, 2020
MylesBorins pushed a commit that referenced this pull request Jul 14, 2020
@codebytere @MylesBorins
src: allow embedders to disable esm loader
74e30ee 
PR-URL: #34060
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
MylesBorins added a commit that referenced this pull request Jul 14, 2020
@MylesBorins
2020-07-15, Version 14.6.0 (Current)
2e91d52 
Notable changes:

doc:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303

PR-URL: TODO
@MylesBorins MylesBorins mentioned this pull request Jul 14, 2020
Merged
MylesBorins added a commit that referenced this pull request Jul 15, 2020
@MylesBorins
2020-07-16, Version 14.6.0 (Current)
6629373 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
MylesBorins added a commit that referenced this pull request Jul 16, 2020
@MylesBorins
2020-07-16, Version 14.6.0 (Current)
93694f6 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
  * (SEMVER-MINOR) update V8 to 8.4.371.19 (Michaël Zasso) [#33579](#33579)
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
MylesBorins pushed a commit that referenced this pull request Jul 16, 2020
@codebytere @MylesBorins
src: allow embedders to disable esm loader
e4c7b59 
PR-URL: #34060
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
MylesBorins added a commit that referenced this pull request Jul 16, 2020
@MylesBorins
2020-07-16, Version 14.6.0 (Current)
35a4b7b 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
  * (SEMVER-MINOR) update V8 to 8.4.371.19 (Michaël Zasso) [#33579](#33579)
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
MylesBorins added a commit that referenced this pull request Jul 20, 2020
@MylesBorins
2020-07-21, Version 14.6.0 (Current)
049631f 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
  * (SEMVER-MINOR) update V8 to 8.4.371.19 (Michaël Zasso) [#33579](#33579)
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
MylesBorins added a commit that referenced this pull request Jul 20, 2020
@MylesBorins
2020-07-21, Version 14.6.0 (Current)
7999aa2 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
  * (SEMVER-MINOR) update V8 to 8.4.371.19 (Michaël Zasso) [#33579](#33579)
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
MylesBorins added a commit that referenced this pull request Jul 20, 2020
@MylesBorins
2020-07-21, Version 14.6.0 (Current)
ca62c34 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
  * (SEMVER-MINOR) update V8 to 8.4.371.19 (Michaël Zasso) [#33579](#33579)
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
MylesBorins added a commit that referenced this pull request Jul 21, 2020
@MylesBorins
2020-07-21, Version 14.6.0 (Current)
a981c65 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
  * (SEMVER-MINOR) update V8 to 8.4.371.19 (Michaël Zasso) [#33579](#33579)
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
cjihrig pushed a commit that referenced this pull request Jul 23, 2020
@MylesBorins @cjihrig
2020-07-21, Version 14.6.0 (Current)
38678ef 
Notable changes:

deps:
  * upgrade npm to 6.14.6 (claudiahdz) #34246
  * upgrade to libuv 1.38.1 (Colin Ihrig) #34187
  * (SEMVER-MINOR) update V8 to 8.4.371.19 (Michaël Zasso) [#33579](#33579)
module:
  * (SEMVER-MINOR) deprecate module.parent (Antoine du HAMEL) #32217
  * (SEMVER-MINOR) package "imports" field (Guy Bedford) #34117
src:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
  * (SEMVER-MINOR) allow embedders to disable esm loader (Shelley Vohr) #34060
tls:
  * (SEMVER-MINOR) make 'createSecureContext' honor more options (Mateusz Krawczuk) #33974
vm:
  * (SEMVER-MINOR) add run-after-evaluate microtask mode (Anna Henningsen) #34023
worker:
  * (SEMVER-MINOR) add option to track unmanaged file descriptors (Anna Henningsen) #34303
New Collaborators:
  * add danielleadams to collaborators (Danielle Adams) #34360
  * add sxa as collaborator (Stewart X Addison) #34338
  * add ruyadorno to collaborators (Ruy Adorno) #34297

PR-URL: #34371
addaleax pushed a commit that referenced this pull request Sep 23, 2020
@codebytere @addaleax
src: allow embedders to disable esm loader
5e28660 
PR-URL: #34060
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
@codebytere codebytere mentioned this pull request Sep 28, 2020
Merged
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@richardlau richardlau richardlau left review comments

@devsnek devsnek devsnek approved these changes

@devnexen devnexen devnexen approved these changes

@addaleax addaleax addaleax approved these changes

@jasnell jasnell jasnell approved these changes

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@codebytere @devsnek @nodejs-github-bot @jasnell @addaleax @devnexen @richardlau