Bug 1504103 [wpt PR 13849] - Fetch: Access-Control-Expose-Headers par…

…sing, a=testonly

Automatic update from web-platform-testsFetch: Access-Control-Expose-Headers parsing

See whatwg/fetch#814 for context.
--

wpt-commits: 645c0e8a5c028a613e7ad1732834100dbe946fc7
wpt-pr: 13849

UltraBlame original commit: b12ab8efbefe006789483f40036d4b1fe8eab05f

testing/web-platform/tests/cors/access-control-expose-headers-parsing.window.js

@@ -0,0 +1,15 @@
+promise_test(() => fetch("resources/access-control-expose-headers.json").then(res => res.json()).then(runTests), "Loading JSON…");
+
+function runTests(allTestData) {
+  allTestData.forEach(testData => {
+    const encodedInput = encodeURIComponent(testData.input);
+    promise_test(() => {
+      const relativeURL = "resources/expose-headers.py?expose=" + encodedInput,
+            url = new URL(relativeURL, location.href).href.replace("://", "://élève.");
+      return fetch(url).then(res => {
+        assert_equals(res.headers.get("content-language"), "mkay");
+        assert_equals(res.headers.get("bb-8"), (testData.exposed ? "hey" : null));
+      });
+    }, "Parsing: " + encodedInput);
+  })
+}

testing/web-platform/tests/cors/resources/access-control-expose-headers.json

@@ -0,0 +1,62 @@
+[
+  {
+    "input": "access-control-expose-headers: BB-8",
+    "exposed": true
+  },
+  {
+    "input": "Access-Control-Expose-Headers: bb-8,,@#$#%%&^&^*()()11!",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: bb-8, no no",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: @#$#%%&^&^*()()11!,bb-8",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: bb-8\r\nAccess-Control-Expose-Headers: no",
+    "exposed": true
+  },
+  {
+    "input": "Access-Control-Expose-Headers: bb-8\r\nAccess-Control-Expose-Headers: no no",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: no\r\nAccess-Control-Expose-Headers: bb-8",
+    "exposed": true
+  },
+  {
+    "input": "Access-Control-Expose-Headers:\r\nAccess-Control-Expose-Headers: bb-8",
+    "exposed": true
+  },
+  {
+    "input": "Access-Control-Expose-Headers: ,bb-8",
+    "exposed": true
+  },
+  {
+    "input": "Access-Control-Expose-Headers: bb-8\u000C",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: bb-8\u000B",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: bb-8\u000B,bb-8",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: 'bb-8'",
+    "exposed": false
+  },
+  {
+    "input": "Access-Control-Expose-Headers: 'bb-8',bb-8",
+    "exposed": true
+  },
+  {
+    "input": "Access-Control-Expose-Headers: \"bb-8\",bb-8",
+    "exposed": false
+  }
+]

testing/web-platform/tests/cors/resources/expose-headers.py

@@ -0,0 +1,10 @@
+def main(request, response):
+    response.add_required_headers = False
+    output =  "HTTP/1.1 221 ALL YOUR BASE BELONG TO H1\r\n"
+    output += "Access-Control-Allow-Origin: *\r\n"
+    output += "BB-8: hey\r\n"
+    output += "Content-Language: mkay\r\n"
+    output += request.GET.first("expose") + "\r\n"
+    output += "\r\n"
+    response.writer.write(output)
+    response.close_connection = True