Bug 1504733 [wpt PR 13921] - Fetch: CORS and request's Content-Type h…

…eader, a=testonly

Automatic update from web-platform-testsFetch: CORS and request's Content-Type header

For whatwg/fetch#829.
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wpt-commits: eed621bc2f995bced9481df2cead4c4632c72cdd
wpt-pr: 13921

UltraBlame original commit: 7f3034a3afb3e49f04faf7b21bf4bc7c597e285c

testing/web-platform/tests/cors/cors-safelisted-request-header.any.js

@@ -0,0 +1,43 @@
+
+
+
+
+
+
+function safelist(headers, expectPreflight = false) {
+  promise_test(async t => {
+    const uuid = token(),
+          url = CROSSDOMAIN + "resources/preflight.py?token=" + uuid,
+          checkURL = "resources/preflight.py?check&token=" + uuid,
+          request = () => fetch(url, { method: "POST", headers, body: "data" });
+    if (expectPreflight) {
+      await promise_rejects(t, TypeError(), request());
+    } else {
+      const response = await request();
+      assert_equals(response.headers.get("content-type"), "text/plain");
+      assert_equals(await response.text(), "NO");
+    }
+    const checkResponse = await fetch(checkURL, { method: "POST", body: "data" });
+    assert_equals(await checkResponse.text(), (expectPreflight ? "1" : "0"));
+  }, (expectPreflight ? "Preflight" : "No preflight") + " for " + JSON.stringify(headers));
+}
+
+[
+  ["text /plain", true],
+  ["text\t/\tplain", true],
+  ["text/plain;"],
+  ["text/plain;garbage"],
+  ["text/plain;garbage\u0001\u0002", true],
+  ["text/plain,", true],
+  [",text/plain", true],
+  ["text/plain,text/plain", true],
+  ["text/plain,x/x", true],
+  ["text/plain\u000B", true],
+  ["text/plain\u000C", true],
+  ["application/www-form-urlencoded", true],
+  ["application/x-www-form-urlencoded;\u007F", true],
+  ["multipart/form-data"],
+  ["multipart/form-data;\"", true]
+].forEach(([mimeType, preflight = false]) => {
+  safelist({"content-type": mimeType}, preflight);
+})