Stop blocking 'http://127.0.0.1/' as mixed content.

third_party/WebKit/LayoutTests/http/tests/security/mixedContent/websocket/resources/expect-throw-on-construction.js

 function reportResult(msg) {
     if (self.opener)
         self.opener.postMessage(msg, "*");
     else if (self.top)
         self.top.postMessage(msg, "*");
     else
         postMessage(msg);
 }
 
 (function () {
     try {
-        var ws = new WebSocket("ws://127.0.0.1:8880/echo");
+        var ws = new WebSocket("ws://example.test:8880/echo");
     } catch (e) {
         reportResult("DONE");
         return;
     }
     reportResult("FAIL: No exception was thrown")
 })();