Add suggestion to use "no-cors" with Fetch fails CORS check.

LayoutTests/http/tests/security/img-crossorigin-redirect-no-cors-expected.txt

Index: LayoutTests/http/tests/security/img-crossorigin-redirect-no-cors-expected.txt
diff --git a/LayoutTests/http/tests/security/img-crossorigin-redirect-no-cors-expected.txt b/LayoutTests/http/tests/security/img-crossorigin-redirect-no-cors-expected.txt
index 36f40e09e2a042d6c148544240e8fc3c6e790c83..153cb91dc6c9bb655010e2e0238bcd3afa11f179 100644
--- a/LayoutTests/http/tests/security/img-crossorigin-redirect-no-cors-expected.txt
+++ b/LayoutTests/http/tests/security/img-crossorigin-redirect-no-cors-expected.txt
@@ -1,7 +1,7 @@
-CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
-CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
-CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
-CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
+CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access. Alternatively, if you want an opaque response, switch to The Fetch API in 'no-cors' mode.
+CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access. Alternatively, if you want an opaque response, switch to The Fetch API in 'no-cors' mode.
+CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access. Alternatively, if you want an opaque response, switch to The Fetch API in 'no-cors' mode.
+CONSOLE ERROR: Redirect at origin 'http://localhost:8000' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access. Alternatively, if you want an opaque response, switch to The Fetch API in 'no-cors' mode.
 Testing the handling of CORS-enabled fetch in the presence of 'No CORS' redirects.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".