There is a service worker WPT test that verifies we correctly intercept shape-outside image loads. We should make sure this passes as part of implementing shape-outside in bug 1098939. The test: http://searchfox.org/mozilla-central/source/testing/web-platform/tests/service-workers/service-worker/fetch-request-css-images.https.html#98 The current test expectation: http://searchfox.org/mozilla-central/source/testing/web-platform/meta/service-workers/service-worker/fetch-request-css-images.https.html.ini#4 I think this should just work since we already intercept background-image from CSS.

I'd like to close out this bug, since it's a blocker for Bug 1353631. This test passes. The subtests that use -webkit-image-set time out, but that's as specified in the expectations file. Is that sufficient?

Sounds good to me.