Make cross-origin-preflight-get-response-type-blob fail when loading fails

third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-preflight-get-response-type-blob.html

Index: third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-preflight-get-response-type-blob.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-preflight-get-response-type-blob.html b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-preflight-get-response-type-blob.html
index 191946944ebf4b054c7b747e7911251e1d889350..037ffbad30f9106a106e36a02a69ad7e3dfd4750 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-preflight-get-response-type-blob.html
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-preflight-get-response-type-blob.html
@@ -21,17 +21,23 @@ function test()
     xhr.open("GET", "http://localhost:8000/xmlhttprequest/resources/cross-origin-preflight-get.php", true);
     // Make this a "non-simple" cross-origin request by adding a custom header.
     xhr.setRequestHeader("X-Proprietary-Header", "foo");
-    xhr.onerror = function() { log("onerror") }
+    xhr.onerror = function() {
+        log("xhr onerror");
+        if (window.testRunner)
+            testRunner.notifyDone();
+    }
     xhr.onload = function() {
         var reader = new FileReader;
         reader.onload = function(evt) {
             log(evt.target.result);
+        };
+        reader.onerror = () => {
+            log("reader.onerror");
+        };
+        reader.onloadend = () => {
             if (window.testRunner)
                 testRunner.notifyDone();
         };
-        reader.onerror = function () {
-            log("reader.onerror");
-        }
         reader.readAsText(xhr.response);
     }
     xhr.send(null);