220330 2021-01-05 10:10:51 -0800 [ Big Sur ] fast/images/webp-as-image.html is failing 2022-12-15 10:07:16 -0800 1 1 1 Unclassified WebKit Images WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 tsavell webkit-unassigned andreas.grunewald maggotfish sabouhallawa szymon.witamborski webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1717372 0 tsavell 2021-01-05 10:10:51 -0800 fast/images/webp-as-image.html This test is failing on Big Sur Constantly. it looks like this image is not loading. History: https://results.webkit.org/?suite=layout-tests&test=fast%2Fimages%2Fwebp-as-image.html Diff: https://build.webkit.org/results/Apple-BigSur-Release-WK2-Tests/r271146%20(753)/fast/images/webp-as-image-diffs.html 1717373 1 webkit-bug-importer 2021-01-05 10:11:04 -0800 <rdar://problem/72818152> 1717380 2 tsavell 2021-01-05 10:17:38 -0800 Modified expectation in https://trac.webkit.org/changeset/271155/webkit 1723449 3 sabouhallawa 2021-01-28 12:17:56 -0800 I can't reproduce the failure on macOS 11.0. But the bots have build macOS 11.1 (20C69) see https://build.webkit.org/buildslaves/bot1024. 1726867 4 419649 szymon.witamborski 2021-02-08 16:05:37 -0800 Created attachment 419649 Script that searches for last good and first bad webp image that fails to be decoded on Big Sur We found out that Safari was failing to load some lossless webp images, most of the time they were simple single or two-colour images. It was also failing only from a certain size but different depending on content. When trying to open these images with Preview, it was also failing so that'd point for the bug to be system-level. I wrote a simple script to generate images with ImageMagick and check if they open with sips -i (normally used to generate thumbnails). This script also binary-searches for last good and first bad images and outputs an HTML file to be used in a browser. From some manual testing done first it looked like breaking point was independent of aspect ratio but rather only depends on final number of pixels in the image, hence the script generates a 1px-high images and only width is variable. Breaking points depend on the actual colour value used. The script only uses some simple examples but could be easily tweaked to test other values (hex values work too). For some it'll go beyond 16383 which is beyond max edge size of webp image so it might be necessary to adjust height of generated images. Here's a live version on codepen of the generated page: https://codepen.io/brainshave/pen/RwoaXow And all edge files in a GH gist: https://gist.github.com/brainshave/04ae8279a4b16e72897ebfb5b382bbd1 Tested on macOS 11.1 and 11.2 on both Safari 14.0.3 and Safari TP 119. All other browsers process these images without issue. 1726869 5 419651 szymon.witamborski 2021-02-08 16:08:28 -0800 Created attachment 419651 Test HTML file for local browser testing Expected output from the page: (Firefox 85, Chrome 88) ✅black_11333.webp ✅black_11334.webp ✅white_12666.webp ✅white_12667.webp ✅red_12000.webp ✅red_12001.webp ✅green_12000.webp ✅green_12001.webp ✅blue_12000.webp ✅blue_12001.webp Safari 14.0.3 and Safari TP 119 on Big Sur 11.2 (Intel MBP) ✅black_11333.webp ❌black_11334.webp ✅white_12666.webp ❌white_12667.webp ✅red_12000.webp ❌red_12001.webp ✅green_12000.webp ❌green_12001.webp ✅blue_12000.webp ❌blue_12001.webp 1726905 6 andreas.grunewald 2021-02-08 17:50:28 -0800 We found a similar issue in our testing last week when trying to enable webp images for our website. Here is the codepen https://codepen.io/grunewald/pen/ExNyvOr all images marked "broken" render fine in Chrome and Firefox but do not render in iOS14 Safari, we weren't able to test on Big Sur. Hope this adds additional data points to this issue. We validated the webp images and none of them seem to be broken. We even generated some ourselves with the cwebp tool and could reproduce the issue sometimes. Happy to support in debugging and testing. -Andreas 1728849 7 andreas.grunewald 2021-02-12 16:33:13 -0800 I just tested with the latest iOS 14.5 beta and can no longer reproduce the issue. Can anyone confirm that this is fixed? 1919621 8 gsnedders 2022-12-15 10:07:16 -0800 Indeed, this was fixed in iOS 14.5 (via rdar://72485913) 419649 2021-02-08 16:05:37 -0800 2021-02-08 16:05:37 -0800 Script that searches for last good and first bad webp image that fails to be decoded on Big Sur test_images.zsh application/x-shellscript 1630 szymon.witamborski IyEvdXNyL2Jpbi9lbnYgenNoCgpybSAqLndlYnAKCmZ1bmN0aW9uIG5hbWUgewogIGxvY2FsIGNv bG9yPSIkMSIKICBsb2NhbCB3aWR0aD0iJDIiCiAgZWNobyAiJHtjb2xvcn1fJHt3aWR0aH0ud2Vi cCIKfQoKZnVuY3Rpb24gY2hlY2sgewogIGxvY2FsIGNvbG9yPSIkMSIKICBsb2NhbCB3aWR0aD0i JDIiCiAgbG9jYWwgZmlsZT0kKG5hbWUgIiRjb2xvciIgIiR3aWR0aCIpCiAgY29udmVydCAtc2l6 ZSAiJHt3aWR0aH14MSIgInhjOiR7Y29sb3J9IiAtZGVmaW5lIHdlYnA6bG9zc2xlc3M9dHJ1ZSAi JGZpbGUiCiAgc2lwcyAtaSAiJGZpbGUiID4gL2Rldi9udWxsIDI+JjEKfQoKZnVuY3Rpb24gc2Vh cmNoIHsKICBsb2NhbCBjb2xvcj0iJDEiCiAgbG9jYWwgbWluPSIkMiIKICBsb2NhbCBtYXg9IiQz IgogIGxvY2FsIG1pZD0wCgogIHdoaWxlIFsgJCgoJG1heCAtICRtaW4pKSAtZ3QgMSBdOyBkbwog ICAgbWlkPSQoKCAoJG1pbiArICRtYXgpIC8gMiApKQogICAgaWYgY2hlY2sgIiRjb2xvciIgIiRt aWQiOyB0aGVuCiAgICAgIG1pbj0kbWlkCiAgICBlbHNlCiAgICAgIG1heD0kbWlkCiAgICBmaQog IGRvbmUKCiAgZWNobyAiJHtjb2xvcn0gJHttaW59ICR7bWF4fSIKICBmaWxlcys9KCQobmFtZSAi JGNvbG9yIiAiJG1pbiIpICQobmFtZSAiJGNvbG9yIiAiJG1heCIpKQp9Cgpjb2xvcnM9KAogIGJs YWNrCiAgd2hpdGUKICByZWQKICBncmVlbgogIGJsdWUKKQoKZmlsZXM9KCkKCmZvciBjb2xvciBp biAkY29sb3JzOyBkbwogIHNlYXJjaCAkY29sb3IgMSAxNjM4Mwpkb25lCgooCiAgY2F0IDw8RU9G CjxodG1sPgogIDxoZWFkPgogICAgPG1ldGEgY2hhcnNldD0idXRmLTgiPgogIDwvaGVhZD4KICA8 Ym9keT4KICA8aW1nIGlkPSJ0ZXN0aW1nIiBzdHlsZT0iZGlzcGxheTogbm9uZSI+CiAgPHByZSBp ZD0ibG9nIj48L3ByZT4KCiAgPHNjcmlwdD4KICAgIGNvbnN0IGZpbGVzID0gWwpFT0YKCiAgZm9y IGZpbGUgaW4gJGZpbGVzOyBkbwogICAgIyBnZW5lcmF0ZSBkYXRhIHVybHMgc28gdGhhdCBmaWxl IGNhbiBiZSBvcGVuZWQgZnJvbSBsb2NhbCBmcwogICAgZWNobyAiICAgICAgWyckZmlsZScsICdk YXRhOmltYWdlL3dlYnA7YmFzZTY0LCQoYmFzZTY0ICIkZmlsZSIpJ10sIgogIGRvbmUKCiAgY2F0 IDw8RU9GCiAgICBdOwoKICAgIGxldCBjdXJyZW50OwoKICAgIGNvbnN0IG5leHQgPSAoKSA9PiB7 CiAgICAgIGN1cnJlbnQgPSBmaWxlcy5zaGlmdCgpOwogICAgICBpZiAoY3VycmVudCkgewogICAg ICAgIGNvbnN0IFssIHNyY10gPSBjdXJyZW50OwogICAgICAgIHRlc3RpbWcuc3JjID0gc3JjOwog ICAgICB9CiAgICB9CgogICAgdGVzdGltZy5vbmxvYWQgPSAoKSA9PiB7CiAgICAgIGNvbnN0IFtu YW1lXSA9IGN1cnJlbnQ7CiAgICAgIGxvZy5pbm5lclRleHQgKz0gXGDinIVcJHtuYW1lfVxuXGA7 CiAgICAgIG5leHQoKTsKICAgIH07CgogICAgdGVzdGltZy5vbmVycm9yID0gKCkgPT4gewogICAg ICBjb25zdCBbbmFtZV0gPSBjdXJyZW50OwogICAgICBsb2cuaW5uZXJUZXh0ICs9IFxg4p2MXCR7 bmFtZX1cblxgOwogICAgICBuZXh0KCk7CiAgICB9OwoKICAgIG5leHQoKTsKICA8L3NjcmlwdD4K PC9ib2R5Pgo8L2h0bWw+CkVPRgopID4gdGVzdC5odG1sCg== 419651 2021-02-08 16:08:28 -0800 2021-02-08 16:08:28 -0800 Test HTML file for local browser testing test.html text/html 1651 szymon.witamborski PGh0bWw+CiAgPGhlYWQ+CiAgICA8bWV0YSBjaGFyc2V0PSJ1dGYtOCI+CiAgPC9oZWFkPgogIDxi b2R5PgogIDxpbWcgaWQ9InRlc3RpbWciIHN0eWxlPSJkaXNwbGF5OiBub25lIj4KICA8cHJlIGlk PSJsb2ciPjwvcHJlPgoKICA8c2NyaXB0PgogICAgY29uc3QgZmlsZXMgPSBbCiAgICAgIFsnYmxh Y2tfMTEzMzMud2VicCcsICdkYXRhOmltYWdlL3dlYnA7YmFzZTY0LFVrbEdSaG9BQUFCWFJVSlFW bEE0VEE0QUFBQXZSQ3dBQUFjUUVmMFBSRVQvQXc9PSddLAogICAgICBbJ2JsYWNrXzExMzM0Lndl YnAnLCAnZGF0YTppbWFnZS93ZWJwO2Jhc2U2NCxVa2xHUmhvQUFBQlhSVUpRVmxBNFRBNEFBQUF2 UlN3QUFBY1FFZjBQUkVUL0F3PT0nXSwKICAgICAgWyd3aGl0ZV8xMjY2Ni53ZWJwJywgJ2RhdGE6 aW1hZ2Uvd2VicDtiYXNlNjQsVWtsR1JoNEFBQUJYUlVKUVZsQTRUQkVBQUFBdmVURUFBQWZRLy83 M3YvK0JpT2gvQUFBPSddLAogICAgICBbJ3doaXRlXzEyNjY3LndlYnAnLCAnZGF0YTppbWFnZS93 ZWJwO2Jhc2U2NCxVa2xHUmg0QUFBQlhSVUpRVmxBNFRCRUFBQUF2ZWpFQUFBZlEvLzczdi8rQmlP aC9BQUE9J10sCiAgICAgIFsncmVkXzEyMDAwLndlYnAnLCAnZGF0YTppbWFnZS93ZWJwO2Jhc2U2 NCxVa2xHUmh3QUFBQlhSVUpRVmxBNFRBOEFBQUF2M3k0QUFBY1EvWS8rQnlLaS93RUEnXSwKICAg ICAgWydyZWRfMTIwMDEud2VicCcsICdkYXRhOmltYWdlL3dlYnA7YmFzZTY0LFVrbEdSaHdBQUFC WFJVSlFWbEE0VEE4QUFBQXY0QzRBQUFjUS9ZLytCeUtpL3dFQSddLAogICAgICBbJ2dyZWVuXzEy MDAwLndlYnAnLCAnZGF0YTppbWFnZS93ZWJwO2Jhc2U2NCxVa2xHUmh3QUFBQlhSVUpRVmxBNFRB OEFBQUF2M3k0QUFBZFF3SWorQnlLaS93RUEnXSwKICAgICAgWydncmVlbl8xMjAwMS53ZWJwJywg J2RhdGE6aW1hZ2Uvd2VicDtiYXNlNjQsVWtsR1Jod0FBQUJYUlVKUVZsQTRUQThBQUFBdjRDNEFB QWRRd0lqK0J5S2kvd0VBJ10sCiAgICAgIFsnYmx1ZV8xMjAwMC53ZWJwJywgJ2RhdGE6aW1hZ2Uv d2VicDtiYXNlNjQsVWtsR1Jod0FBQUJYUlVKUVZsQTRUQThBQUFBdjN5NEFBQWNRMGYvK0J5S2kv d0VBJ10sCiAgICAgIFsnYmx1ZV8xMjAwMS53ZWJwJywgJ2RhdGE6aW1hZ2Uvd2VicDtiYXNlNjQs VWtsR1Jod0FBQUJYUlVKUVZsQTRUQThBQUFBdjRDNEFBQWNRMGYvK0J5S2kvd0VBJ10sCiAgICBd OwoKICAgIGxldCBjdXJyZW50OwoKICAgIGNvbnN0IG5leHQgPSAoKSA9PiB7CiAgICAgIGN1cnJl bnQgPSBmaWxlcy5zaGlmdCgpOwogICAgICBpZiAoY3VycmVudCkgewogICAgICAgIGNvbnN0IFss IHNyY10gPSBjdXJyZW50OwogICAgICAgIHRlc3RpbWcuc3JjID0gc3JjOwogICAgICB9CiAgICB9 CgogICAgdGVzdGltZy5vbmxvYWQgPSAoKSA9PiB7CiAgICAgIGNvbnN0IFtuYW1lXSA9IGN1cnJl bnQ7CiAgICAgIGxvZy5pbm5lclRleHQgKz0gYOKchSR7bmFtZX1cbmA7CiAgICAgIG5leHQoKTsK ICAgIH07CgogICAgdGVzdGltZy5vbmVycm9yID0gKCkgPT4gewogICAgICBjb25zdCBbbmFtZV0g PSBjdXJyZW50OwogICAgICBsb2cuaW5uZXJUZXh0ICs9IGDinYwke25hbWV9XG5gOwogICAgICBu ZXh0KCk7CiAgICB9OwoKICAgIG5leHQoKTsKICA8L3NjcmlwdD4KPC9ib2R5Pgo8L2h0bWw+Cg==