Tests that errors to load a resource cause error messages to be logged to console.

Message count: 5
console-resource-errors-iframe.html:3 GET http://127.0.0.1:8000/devtools/missing.css net::ERR_ABORTED 404 (Not Found) console-message-wrapper console-error-level > console-message
console-resource-errors-iframe.html:4 GET http://127.0.0.1:8000/devtools/non-existent-script.js net::ERR_ABORTED 404 (Not Found) console-message-wrapper console-error-level > console-message
console-resource-errors-iframe.html:8 GET http://127.0.0.1:8000/devtools/non-existent-iframe.html 404 (Not Found) console-message-wrapper console-error-level > console-message
console-resource-errors.js:26 GET http://127.0.0.1:8000/devtools/non-existent-xhr 404 (Not Found)
loadXHR @ console-resource-errors.js:26
step2 @ console-resource-errors.js:18
error
performActions @ console-resource-errors.js:13
(anonymous) @ console-resource-errors.js:37 console-message-wrapper console-error-level > console-message
unknown-scheme://foo:1 GET unknown-scheme://foo net::ERR_UNKNOWN_URL_SCHEME
Image
performActions @ console-resource-errors.js:14
(anonymous) @ console-resource-errors.js:37 console-message-wrapper console-error-level > console-message