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

third_party/WebKit/LayoutTests/http/tests/fetch/resources/fetch-test-helpers.js

 if (self.importScripts) {
   importScripts('/resources/testharness.js');
   importScripts('/serviceworker/resources/test-helpers.js');
   importScripts('/fetch/resources/fetch-test-options.js');
 }
 
 function getContentType(headers) {
   var content_type = '';
   for (var header of headers) {
     if (header[0] == 'content-type')
@@ skipping 169 matching lines @@
               .then(t.unreached_func('Test 3: Must be blocked (' +
                                      mode + ', HTTPS->HTTP->HTTPS)'),
                     function() {});
           })
         .then(function() {
             // Test 4: Must success.
             // Test that the mixed contents above are not rejected due to
             return fetch(HTTPS_REDIRECT_URL +
                          encodeURIComponent(HTTPS_BASE_URL + 'test4-' + mode),
                          {mode: mode})
-              .then(function(res) {assert_equals(res.status, 200); },
+              .then(function(res) {assert_equals(res.status, mode == 'no-cors' ? 0 : 200); },
                     t.unreached_func('Test 4: Must success (' +
                                      mode + ', HTTPS->HTTPS->HTTPS)'));
           })
         .then(function() {
             // Test 5: Must success if mode is not 'same-origin'.
             // Test that the mixed contents above are not rejected due to
             // CORS check.
             return fetch(HTTPS_OTHER_REDIRECT_URL +
                          encodeURIComponent(HTTPS_BASE_URL + 'test5-' + mode),
                          {mode: mode})
@@ skipping 26 matching lines @@
           {referrer: referrer, referrerPolicy: policy, mode: 'cors'});
         return fetch(new Request(url, request)).then(res => {
             return res.json();
           }).then(json => {
             assert_equals(json.referrer, expected, 'referrer');
           });
      },
      `referrer test: url = ${url}, referrer = ${referrer}, policy = ${policy}`);
   }
 }