Created attachment 281925 [details] Example to reproduce the bug Safari 10 / WebKit on macOS 10.12 tries to load the source map from an incorrect location. To reproduce: - Unzip the attachment. - Host it by executing 'python -m SimpleHTTPServer 1234' - Go to http://0.0.0.0:1234 - Open the Web Inspector Console (option-cmd-C) - Look at the errors Observed: - A 404 error caused by the Inspector trying to load the source map from /script.js.map (should be /scripts/script.js.map) Expected: - No errors (only from trying to load favicon.ico, maybe) Notes: This only happens with Safari 10 / macOS 10.12. Because those are not listed in Version / OS, I selected ‘Other’. I also tested with Safari 9 and STP on OS X 10.11.
<rdar://problem/26979237>
This is behaving as expected in the latest Safari Technology Preview and trunk (r202384) for me.
I believe this is a duplicate of: bug 157650 02c2fe3 REGRESSION: Web Inspector: Fails to load sourceMappingURL with relative URL https://bugs.webkit.org/show_bug.cgi?id=157650 <rdar://problem/26133763> Which indeed missed the cutoff for the first macOS Seed. *** This bug has been marked as a duplicate of bug 157650 ***