CSP 1.1: Implement the 'frame-ancestors' directive.

LayoutTests/http/tests/security/contentSecurityPolicy/1.1/frame-ancestors/frame-ancestors-nested-same-in-same-url-block-expected.txt

Index: LayoutTests/http/tests/security/contentSecurityPolicy/1.1/frame-ancestors/frame-ancestors-nested-same-in-same-url-block-expected.txt
diff --git a/LayoutTests/http/tests/security/contentSecurityPolicy/1.1/frame-ancestors/frame-ancestors-nested-same-in-same-url-block-expected.txt b/LayoutTests/http/tests/security/contentSecurityPolicy/1.1/frame-ancestors/frame-ancestors-nested-same-in-same-url-block-expected.txt
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+CONSOLE ERROR: Refused to display 'http://127.0.0.1:8000/security/contentSecurityPolicy/resources/frame-ancestors.pl?policy=http://localhost:8080 in a frame because an ancestor violates the following Content Security Policy directive: "frame-ancestors http://localhost:8080".
+A 'frame-ancestors' CSP directive with a URL value should block or allow rendering in nested frames as appropriate.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS The inner IFrame passed.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
+
+--------
+Frame: '<!--framePath //<!--frame0-->-->'
+--------
+Testing a same-origin child with a policy of "http://localhost:8080" nested in a same-origin parent.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+IFrame load event fired: the IFrame is cross-origin (or was blocked).
+PASS The IFrame should have been blocked (or cross-origin). It was.
+
+