181421 2018-01-08 17:30:59 -0800 [GTK] Problem with Washington Post images 2018-02-01 07:55:24 -0800 1 1 1 Unclassified WebKit WebKitGTK Other All Linux RESOLVED FIXED P2 Major --- 1 bugzilla-ok webkit-unassigned bugs-noreply cgarcia clopez mcatanzaro oldest_to_newest 1387022 0 bugzilla-ok 2018-01-08 17:30:59 -0800 Many images on Washington Post fail to load. For example (article chosen at random): https://www.washingtonpost.com/news/politics/wp/2018/01/05/trumps-first-year-jobs-numbers-were-very-very-good/?utm_term=.1c86a459b14a Problem is with latest versions of Epiphany, Surf and MiniBrowser (under Xubuntu 17.10). Works fine with Firefox. 1395425 1 cgarcia 2018-02-01 05:39:48 -0800 This is because Washington Post is using the user agent to decide the image formats it serves. In the case of chromium the images are served as webp, for firefox jpeg is used and in our case it's assuming we are safari and it's providing jp2 images that we don't support. So, we would need a user agent quirk to pretend to be firefox or chromium (I guess better chromium in this case) or add an image decoder for jpeg 2000. 1395426 2 332869 cgarcia 2018-02-01 05:51:10 -0800 Created attachment 332869 Patch This is the easiest solution in the short-medium term. 1395432 3 clopez 2018-02-01 06:07:44 -0800 Mmmm, good catch. And I'm checking that people is actually recommending do this to webmasters: parse the user-agent string to guess if JP2 support is available "because Safari doesn't expose support for it on the accept-header" https://blog.elijaa.org/2016/01/29/detect-webp-jpeg2000-jpegxr-image-format-support-in-php/ So we may be bitten by this on more sites than on Washington post :( 1395434 4 cgarcia 2018-02-01 06:11:37 -0800 (In reply to Carlos Alberto Lopez Perez from comment #3) > Mmmm, good catch. > > And I'm checking that people is actually recommending do this to webmasters: > parse the user-agent string to guess if JP2 support is available "because > Safari doesn't expose support for it on the accept-header" > https://blog.elijaa.org/2016/01/29/detect-webp-jpeg2000-jpegxr-image-format- > support-in-php/ > > So we may be bitten by this on more sites than on Washington post :( That's why I think adding support for jpeg2000 could be the long term solution. 1395462 5 cgarcia 2018-02-01 07:55:24 -0800 Committed r227965: <https://trac.webkit.org/changeset/227965> 332869 2018-02-01 05:51:10 -0800 2018-02-01 06:08:48 -0800 Patch wk-washingtonpost.diff text/plain 2997 cgarcia ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJDb3JlL0No YW5nZUxvZwppbmRleCA0ZmFlYTQxNjM5Mi4uNjg5MDhjYWJmMzMgMTAwNjQ0Ci0tLSBhL1NvdXJj ZS9XZWJDb3JlL0NoYW5nZUxvZworKysgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwxOCBAQAorMjAxOC0wMi0wMSAgQ2FybG9zIEdhcmNpYSBDYW1wb3MgIDxjZ2FyY2lhQGln YWxpYS5jb20+CisKKyAgICAgICAgW0dUS10gUHJvYmxlbSB3aXRoIFdhc2hpbmd0b24gUG9zdCBp bWFnZXMKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTE4 MTQyMQorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIFRo aXMgaXMgYmVjYXVzZSBXYXNoaW5ndG9uIFBvc3QgaXMgdXNpbmcgdGhlIHVzZXIgYWdlbnQgdG8g ZGVjaWRlIHRoZSBpbWFnZSBmb3JtYXRzIGl0IHNlcnZlcy4gSW4gdGhlIGNhc2Ugb2YKKyAgICAg ICAgY2hyb21pdW0gdGhlIGltYWdlcyBhcmUgc2VydmVkIGFzIHdlYnAsIGZvciBmaXJlZm94IGpw 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