144416 2015-04-29 15:58:13 -0700 http/tests/cache/main-resource-304-reload.html failing on Windows 2015-05-01 22:12:38 -0700 1 1 1 Unclassified WebKit Page Loading 528+ (Nightly build) Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=144386 LayoutTestFailure, PlatformOnly P2 Normal --- 1 jhoneycutt webkit-unassigned koivisto oldest_to_newest 1090196 0 jhoneycutt 2015-04-29 15:58:13 -0700 http/tests/cache/main-resource-304-reload.html is failing on Windows. <https://build.webkit.org/results/Apple%20Win%207%20Release%20(Tests)/r183568%20(51454)/results.html> <https://build.webkit.org/results/Apple%20Win%207%20Release%20(Tests)/r183572%20(51455)/http/tests/cache/main-resource-304-reload-pretty-diff.html> It's not clear to me from the test whether this is an error that can be fixed by modifying the PHP script to use array_key_exists() or whether this is an Apache configuration issue. 1090319 1 ap 2015-04-29 19:52:08 -0700 I'm pretty sure that isset would do the trick: if (isset($_SERVER["HTTP_IF_MODIFIED_SINCE"])) { > header("HTTP/1.0 304 Not Modified"); Why 1.0? Really weird to mix that with Cache-Control and ETags. 1090381 2 koivisto 2015-04-30 00:33:53 -0700 I just copied and lightly modified the script from LayoutTests/http/tests/cache/resources/iframe304.php. That is indeed silly. 1090382 3 koivisto 2015-04-30 00:43:40 -0700 Switched both scripts to say HTTP/1.1 in https://trac.webkit.org/r183623. No idea if that fixes anything. This test was already marked failing on Windows in http://trac.webkit.org/changeset/183573 1091045 4 ap 2015-05-01 22:12:38 -0700 To fix the test, please see the first part of my comment, and use the isset() function.