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Unified Diff: third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/header-value-update/normalize-affected-1.html

Issue 1378543002: Add UMA for header values in XHR's setRequestHeader() checked against RFC 7230 (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Reflected tyoshino's comments. Created 5 years, 3 months ago
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Index: third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/header-value-update/normalize-affected-1.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/header-value-update/normalize-affected-1.html b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/header-value-update/normalize-affected-1.html
new file mode 100644
index 0000000000000000000000000000000000000000..06bbc27c10caab08bd06c3db196d8fc62e91c40c
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/header-value-update/normalize-affected-1.html
@@ -0,0 +1,51 @@
+<!doctype html>
+<script src="/js-test-resources/js-test.js"></script>
+<script>
+window.jsTestIsAsync = true;
+description('Multiple calls to XMLHttpRequest.setRequestHeader() with ' +
+ 'the same header name and header values with leading/trailing ' +
+ 'whitespaces should show a deprecation message.');
+
+// According to the XHR spec [1], normalization (removing leading/trailing
+// whitespaces) must be done on the value argument on setRequestHeader() call.
+// Currently Blink's XHR implementation doesn't do the normalization, but other
+// parts of Chromium do the normalization after setRequestHeader() and before
+// headers are sent to network.
+// A deprecation warning should be shown if the headers sent to the network is
+// affected by introducing header value normalization in Blink's XHR.
+// [1] https://xhr.spec.whatwg.org/#dom-xmlhttprequest-setrequestheader
+// https://crbug.com/455099
+
+var xhr = new XMLHttpRequest;
+xhr.open("GET", "../resources/print-headers.cgi");
+
+// The leading/trailing whitespaces are not removed by Chromium after
+// setRequestHeader() if there are multiple setRequestHeader() calls with
+// the same header name because it is applied the header value concatenated by
+// ', ' in setRequestHeader().
+// In the following case,
+// a1. Blink's XHR creates the header value 'a , \tb',
+// a2. Chromium normalizes 'a , \tb' but does nothing, and
+// a3. 'a , \tb' is sent to the network.
+// If we introduce header value normalization in Blink's XHR, then:
+// b1. Blink's XHR creates the header value 'a, b' because it normalizes
+// 'a ' and '\tb' into 'a' and 'b', respectively, before concatenating by
+// ', '.
+// b2. Chromium normalizes 'a, b' but does nothing, and
+// b3. 'a, b' is sent to the network.
+// a3 and b3 are different, so a deprecation warning should be shown.
kinuko 2015/09/29 12:51:33 Wow super detailed comments. I feel a bit shorter
+xhr.setRequestHeader('test1', 'a ');
+xhr.setRequestHeader('test1', '\tb');
+
+xhr.onload = function() {
+ // This expectation must be updated once we update header value checks.
+ shouldNotBe('xhr.responseText.match(/HTTP_TEST1: a , \\tb\\r?\\n/)',
+ 'null');
+ finishJSTest();
+};
+xhr.onerror = function() {
+ testFailed();
+ finishJSTest();
+};
+xhr.send();
+</script>

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