Enabled CORS for chrome://resources.

content/browser/webui/url_data_manager_backend.cc

Index: content/browser/webui/url_data_manager_backend.cc
diff --git a/content/browser/webui/url_data_manager_backend.cc b/content/browser/webui/url_data_manager_backend.cc
index cda08bbda0d2e0f596df81a6eccebd6f7cd2c56f..f4ac9f1e1aea09d04d3d4a39beb88fa0642750f5 100644
--- a/content/browser/webui/url_data_manager_backend.cc
+++ b/content/browser/webui/url_data_manager_backend.cc
@@ -271,6 +271,8 @@ void URLRequestChromeJob::GetResponseInfo(net::HttpResponseInfo* info) {
   // indistiguishable from other error types. Instant relies on getting a 200.
   info->headers = new net::HttpResponseHeaders("HTTP/1.1 200 OK");
 
+  info->headers->AddHeader("Access-Control-Allow-Origin: *");

[dglazkov, 2014/09/29 17:01:21]

Is '*' really what you want here?

[dzhioev (left Google), 2014/09/29 17:32:11]

It seems 'Access-Control-Allow-Origin' can be either "*", or "null", or single
"shcheme://host:port" (without wildcards) in Chrome. So we can't use
"chrome://*" or explicit list "chrome://host1 chrome://host2 chrome://host3"
here.

+
   // Determine the least-privileged content security policy header, if any,
   // that is compatible with a given WebUI URL, and append it to the existing
   // response headers.