Re: [preload-tests] Align test names, add feature detection and add per-URL verification. (#4752)

These tests will be available on [w3c-test.org](https://w3c-test.org/submissions/4752/) shortly after they are [approved](https://github.com/w3c/web-platform-tests/blob/master/README.md#publication) by a repository collaborator.


* [preload/avoid-delaying-onload-link-preload.html](https://w3c-test.org/submissions/4752/preload/avoid-delaying-onload-link-preload.html)
* [preload/delaying-onload-link-preload-after-discovery.html](https://w3c-test.org/submissions/4752/preload/delaying-onload-link-preload-after-discovery.html)
* [preload/download-resources.html](https://w3c-test.org/submissions/4752/preload/download-resources.html)
* [preload/dynamic-adding-preload.html](https://w3c-test.org/submissions/4752/preload/dynamic-adding-preload.html)
* [preload/fetch-destination.https.html](https://w3c-test.org/submissions/4752/preload/fetch-destination.https.html)
* [preload/link-header-preload-delay-onload.html](https://w3c-test.org/submissions/4752/preload/link-header-preload-delay-onload.html)
* [preload/link-header-preload.html](https://w3c-test.org/submissions/4752/preload/link-header-preload.html)
* [preload/onerror-event.html](https://w3c-test.org/submissions/4752/preload/onerror-event.html)
* [preload/onload-event.html](https://w3c-test.org/submissions/4752/preload/onload-event.html)
* [preload/preload-csp.sub.html](https://w3c-test.org/submissions/4752/preload/preload-csp.sub.html)
* [preload/preload-default-csp.sub.html](https://w3c-test.org/submissions/4752/preload/preload-default-csp.sub.html)
* [preload/preload-with-type.html](https://w3c-test.org/submissions/4752/preload/preload-with-type.html)
* [preload/single-download-late-used-preload.html](https://w3c-test.org/submissions/4752/preload/single-download-late-used-preload.html)
* [preload/single-download-preload.html](https://w3c-test.org/submissions/4752/preload/single-download-preload.html)

View on GitHub: https://github.com/w3c/web-platform-tests/pull/4752#issuecomment-277978534

Received on Tuesday, 7 February 2017 11:59:52 UTC