297232 2025-08-11 12:24:14 -0700 REGRESSION (Safari 18.5): `@media print` does not work when nested 2025-08-18 10:31:52 -0700 1 1 1 Unclassified WebKit CSS Safari 18 All All RESOLVED FIXED InRadar P2 Normal --- 1 jordan m_dubet koivisto webkit-bug-importer oldest_to_newest 2135699 0 476359 jordan 2025-08-11 12:24:14 -0700 Created attachment 476359 Example document demonstrating the bug If you print a page with the following in Safari you'll see that the div is still visible: ```html <style> .hidden { @media print { display: none; } } </style> <div class="hidden">FAIL if visible on print</div> ``` This is *not* the case if the media query wraps the rules as this works: ```html <style> .hidden { @media print { display: none; } } </style> <div class="hidden">FAIL if visible on print</div> ``` I haven't yet found a workaround that allows nesting to work here in Safari. Tested on: - macOS 15, macOS 26, iOS 18, iOS 26 - Safari 17.3–18.4 (works) - Safari 18.5–18.6 (broken) - Safari 26 and TP (broken) - Webkit Nightly (broken) - Firefox (works) - Chrome (works) 2135705 1 jordan 2025-08-11 12:31:41 -0700 I meant to put the nightly/build archive version I tested which was the latest as of this bug report: 298509@main 2135749 2 jordan 2025-08-11 14:28:26 -0700 Whoops I typo'd the second one. The example file is correct though. Was supposed to be this: ```html <style> @media print { .hidden { display: none; } } </style> <div class="hidden">FAIL if visible on print</div> ``` 2135793 3 ap 2025-08-11 16:28:38 -0700 Thank you for such detailed regression information, and the minimized test case! 2135794 4 webkit-bug-importer 2025-08-11 16:28:49 -0700 <rdar://problem/158081814> 2136462 5 m_dubet 2025-08-14 06:09:54 -0700 Pull request: https://github.com/WebKit/WebKit/pull/49387 2137167 6 ews-feeder 2025-08-18 10:31:50 -0700 Committed 298843@main (e001647e607b): <https://commits.webkit.org/298843@main> Reviewed commits have been landed. Closing PR #49387 and removing active labels. 476359 2025-08-11 12:24:14 -0700 2025-08-11 12:24:14 -0700 Example document demonstrating the bug bug.html text/html 390 jordan PCFkb2N0eXBlIGh0bWw+CjxzdHlsZT4KICAucHJpbnQtaGlkZGVuLW5lc3RlZCB7CiAgICBAbWVk aWEgcHJpbnQgewogICAgICBkaXNwbGF5OiBub25lOwogICAgfQogIH0KICBAbWVkaWEgcHJpbnQg ewogICAgLnByaW50LWhpZGRlbi13cmFwcGVkIHsKICAgICAgZGlzcGxheTogbm9uZTsKICAgIH0K ICB9Cjwvc3R5bGU+CjxkaXYgY2xhc3M9InByaW50LWhpZGRlbi1uZXN0ZWQiPkZBSUwgaWYgdmlz aWJsZSBvbiBwcmludCAobmVzdGVkKTwvZGl2Pgo8ZGl2IGNsYXNzPSJwcmludC1oaWRkZW4td3Jh cHBlZCI+RkFJTCBpZiB2aXNpYmxlIG9uIHByaW50ICh3cmFwcGVkKTwvZGl2Pgo8YnV0dG9uIG9u Y2xpY2s9IndpbmRvdy5wcmludCgpIj5QcmludCB0aGlzIHBhZ2U8L2J1dHRvbj4K