It is useful for the UA to be able to preload responsive images. The idea is to allow this with the imagesrcset and imagesizes attributes on <link rel=preload as=image>. Spec PRs and discussions: - https://github.com/w3c/preload/issues/120 (Initial discussion) - https://github.com/whatwg/html/pull/4048 (HTML Standard PR) - https://github.com/w3c/preload/pull/134 (Preload Spec PR (minor))
Created attachment 366072 [details] Patch
Comment on attachment 366072 [details] Patch Attachment 366072 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: https://webkit-queues.webkit.org/results/11684853 New failing tests: imported/w3c/web-platform-tests/preload/link-header-preload-srcset.tentative.html
Created attachment 366082 [details] Archive of layout-test-results from ews122 for ios-simulator-wk2 The attached test failures were seen while running run-webkit-tests on the ios-sim-ews. Bot: ews122 Port: ios-simulator-wk2 Platform: Mac OS X 10.13.6
Created attachment 366276 [details] Patch
Comment on attachment 366276 [details] Patch Attachment 366276 [details] did not pass mac-ews (mac): Output: https://webkit-queues.webkit.org/results/11703692 New failing tests: imported/w3c/web-platform-tests/preload/link-header-preload-srcset.tentative.html
Created attachment 366282 [details] Archive of layout-test-results from ews100 for mac-highsierra The attached test failures were seen while running run-webkit-tests on the mac-ews. Bot: ews100 Port: mac-highsierra Platform: Mac OS X 10.13.6
Comment on attachment 366276 [details] Patch Attachment 366276 [details] did not pass mac-wk2-ews (mac-wk2): Output: https://webkit-queues.webkit.org/results/11703728 New failing tests: imported/w3c/web-platform-tests/preload/link-header-preload-srcset.tentative.html
Created attachment 366283 [details] Archive of layout-test-results from ews104 for mac-highsierra-wk2 The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews. Bot: ews104 Port: mac-highsierra-wk2 Platform: Mac OS X 10.13.6
Comment on attachment 366276 [details] Patch Attachment 366276 [details] did not pass mac-debug-ews (mac): Output: https://webkit-queues.webkit.org/results/11703770 New failing tests: imported/w3c/web-platform-tests/preload/link-header-preload-srcset.tentative.html
Created attachment 366285 [details] Archive of layout-test-results from ews112 for mac-highsierra The attached test failures were seen while running run-webkit-tests on the mac-debug-ews. Bot: ews112 Port: mac-highsierra Platform: Mac OS X 10.13.6
Created attachment 366308 [details] Patch
(In reply to Rob Buis from comment #11) > Created attachment 366308 [details] > Patch Note that the parameter list for loadLink is quite long, it may make sense to consolidate them in a single class, but I think it should be a separate patch.
Created attachment 367724 [details] Patch
Comment on attachment 367724 [details] Patch Attachment 367724 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: https://webkit-queues.webkit.org/results/11913509 New failing tests: imported/w3c/web-platform-tests/preload/link-header-preload-srcset.tentative.html
Created attachment 367725 [details] Archive of layout-test-results from ews126 for ios-simulator-wk2 The attached test failures were seen while running run-webkit-tests on the ios-sim-ews. Bot: ews126 Port: ios-simulator-wk2 Platform: Mac OS X 10.13.6