tree 017d9023b9f469beeca87d2a14af724972362cf8
parent 4547dc6e7424c68fac1a86e9cac05f21b8f352bb
author Yoav Weiss <yoavweiss@chromium.org> 1559141035 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1559141456 -0400

Avoid triggering spurious downloads for no-store responsive images

When responsive images are not cached in the memory cache (due to
`no-store` or devtools settings) and the viewport is being resized,
that triggers spurious downloads.

This CL fixes that, by aligning to the spec (somewhat) and making sure
that viewport changes that don't modify the image URL do not trigger a
resource load.

Bug: 960633
Change-Id: I8105bcf5dbef99767ac704872800f4d417caf8b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1622168
Reviewed-by: Fredrik Söderquist <fs@opera.com>
Commit-Queue: Yoav Weiss <yoavweiss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664269}