230226 2021-09-13 11:45:42 -0700 AX iOS: Make PDFs loaded via <embed> accessible 2022-03-07 05:47:26 -0800 1 1 1 Unclassified WebKit Accessibility WebKit Nightly Build iPhone / iPad Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=229556 https://bugs.webkit.org/show_bug.cgi?id=230167 InRadar P2 Normal --- 1 tyler_w webkit-unassigned andresg_22 brennan.young webkit-bug-importer oldest_to_newest 1793032 0 438061 tyler_w 2021-09-13 11:45:42 -0700 Created attachment 438061 Testcase <embed name="plugin" src="file:///path/to/example.pdf" type="application/pdf"> These PDFs are rendered fine, but are not accessible to VoiceOver. https://bugs.webkit.org/show_bug.cgi?id=229556 fixed this for Mac, but not for iOS. 1793033 1 webkit-bug-importer 2021-09-13 11:46:10 -0700 <rdar://problem/83065664> 1848704 2 brennan.young 2022-03-07 05:47:26 -0800 Note that only well-formed PDF/UA files contain the semantic information needed to generate an accessibility tree accurately. "Ordinary" PDF files (i.e. those without semantic tags) are likely to fail even in the best implementations. However, PDF/UA in-browser should generate an accessibility tree. It does not. This problem is not limited to iOS, and also appears on Mac Safari. A possible workaround is stymied by another bug (223798) with aria-owns. 438061 2021-09-13 11:45:42 -0700 2021-09-13 11:45:42 -0700 Testcase file_230226.txt text/plain 744 tyler_w PCFET0NUWVBFIEhUTUw+DQo8aHRtbD4NCiAgICA8Ym9keSBtYXJnaW53aWR0aD0iMCIgbWFyZ2lu aGVpZ2h0PSIwIiBzdHlsZT0iYmFja2dyb3VuZC1jb2xvcjogcmdiKDEyOCwgMTI4LCAxMjgpOyBo ZWlnaHQ6IDEyMDBweDsiPg0KICAgICAgICA8ZW1iZWQgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAw JSIgbmFtZT0icGx1Z2luIiBzcmM9ImZpbGU6Ly8vVXNlcnMvdHdpbGNvL0RvY3VtZW50cy9leGFt cGxlLnBkZiIgdHlwZT0iYXBwbGljYXRpb24vcGRmIj4NCiAgICAgICAgPGRpdiBpZD0iYW5ub3Rh dGlvbkNvbnRhaW5lciI+DQogICAgICAgICAgICA8c3R5bGU+I2Fubm90YXRpb25Db250YWluZXIg e292ZXJmbG93OiBoaWRkZW47IHBvc2l0aW9uOiBhYnNvbHV0ZTsgcG9pbnRlci1ldmVudHM6IG5v bmU7IHRvcDogMDsgbGVmdDogMDsgcmlnaHQ6IDA7IGJvdHRvbTogMDsgZGlzcGxheTogLXdlYmtp dC1ib3g7IC13ZWJraXQtYm94LWFsaWduOiBjZW50ZXI7IC13ZWJraXQtYm94LXBhY2s6IGNlbnRl cjt9IC5hbm5vdGF0aW9uIHtwb3NpdGlvbjogYWJzb2x1dGU7IHBvaW50ZXItZXZlbnRzOiBhdXRv O30gdGV4dGFyZWEuYW5ub3RhdGlvbiB7cmVzaXplOiBub25lO30gaW5wdXQuYW5ub3RhdGlvblt0 eXBlPSdwYXNzd29yZCddIHtwb3NpdGlvbjogc3RhdGljOyB3aWR0aDogMjAwcHg7IG1hcmdpbi10 b3A6IDEwMHB4O30gPC9zdHlsZT4NCiAgICAgICAgPC9kaXY+DQogICAgPC9ib2R5Pg0KPC9odG1s Pg0K