Test case: data:text/html,<!doctype html> <span style=font-style:oblique></span> <script> alert(getComputedStyle(document.querySelector("span")).fontStyle) </script> Chrome 15 dev alerts "italic". Firefox 8.0a2 alerts "oblique". I didn't test in other browsers, but really, it's pretty obvious that Chrome is wrong here. Not likely to be high impact, since no one uses "oblique", but . . .
I am unable to reproduce this bug in Safari 15.6 on macOS 12.5, it returns "oblique" as expected in the test case. JSFiddle - https://jsfiddle.net/9g8rtod7/show Chrome Canary 106 returns "italic" but Firefox Nightly 104 matches with Safari 15.6. I think it is Chrome bug and not Safari and can be marked as "RESOLVED INVALID" or "RESOLVED CONFIGURATION CHANGED". Thanks!