Bug 1523562 [wpt PR 14940] - WebKit export of https://bugs.webkit.org/show_bug.cgi?id=193553, a=testonly

Automatic update from web-platform-tests
WebKit export of https://bugs.webkit.org/show_bug.cgi?id=193553 (#14940)

* FetchResponse::url should return the empty string for tainted responses
--

wpt-commits: d3a7b003821596386fb708fe18decf696c563277
wpt-pr: 14940

testing/web-platform/tests/fetch/api/basic/mode-no-cors.sub.any.js

@@ -7,6 +7,7 @@ function fetchNoCors(url, isOpaqueFiltered) {
       return fetch(url + urlQuery, {"mode": "no-cors"}).then(function(resp) {
         assert_equals(resp.status, 0, "Opaque filter: status is 0");
         assert_equals(resp.statusText, "", "Opaque filter: statusText is \"\"");
+        assert_equals(resp.url, "", "Opaque filter: url is \"\"");
         assert_equals(resp.type , "opaque", "Opaque filter: response's type is opaque");
         assert_equals(resp.headers.get("x-is-filtered"), null, "Header x-is-filtered is filtered");
       });