Bug 1452643 [wpt PR 10286] - Use stable error messages in the link onload event tests by default., a=testonly

Automatic update from web-platform-testsMerge pull request #10286 from bzbarsky/stable-error-messages-for-link-load

Use stable error messages in the link onload event tests by default.

wpt-commits: f527ada08cea94e63a40712062073d6ed37c8526
wpt-pr: 10286
wpt-commits: f527ada08cea94e63a40712062073d6ed37c8526
wpt-pr: 10286

testing/web-platform/meta/MANIFEST.json

@@ -564471,7 +564471,7 @@
    "support"
   ],
   "html/semantics/document-metadata/the-link-element/resources/link-load-error-events.sub.js": [
-   "0c45045a1db6958751dfe112aa3234ca936263e7",
+   "1c5d8fe0b94b033b8e6ee7bcf54bd35ba2febd36",
    "support"
   ],
   "html/semantics/document-metadata/the-link-element/resources/stylesheet.css": [

testing/web-platform/tests/html/semantics/document-metadata/the-link-element/resources/link-load-error-events.sub.js

@@ -7,6 +7,10 @@
  * avoids issues around caching of sheets based on URL.
  */
 
+// Our URLs are random, so we don't use them in error messages by
+// default, but enable doing it if someone wants to debug things.
+const DEBUG_URLS = false;
+
 var isHttps = location.protocol == "https:";
 
 var tests = [
@@ -113,12 +117,13 @@ for (var test of tests) {
   var t = async_test(description);
   var link = document.createElement("link");
   link.rel = "stylesheet";
+  hrefString = DEBUG_URLS ? `: ${href}` : "";
   if (success) {
     link.onload = t.step_func_done(() => {});
-    link.onerror = t.step_func_done(() => assert_unreached(`error fired when load expected: ${href}`) );
+    link.onerror = t.step_func_done(() => assert_unreached(`error fired when load expected${hrefString}`) );
   } else {
     link.onerror = t.step_func_done(() => {});
-    link.onload = t.step_func_done(() => assert_unreached(`load fired when error expected: ${href}`) );
+    link.onload = t.step_func_done(() => assert_unreached(`load fired when error expected${hrefString}`) );
   }
   link.href = href;
   document.head.appendChild(link);