158507 2016-06-07 18:22:22 -0700 Setting a style on the body right after load doesn't trigger a style recalc 2022-09-04 13:45:34 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED P2 Normal --- 1 sam webkit-unassigned ahmad.saleem792 ap bfulgham koivisto simon.fraser zalan oldest_to_newest 1200277 0 280758 sam 2016-06-07 18:22:22 -0700 Created attachment 280758 Test case While investigating a test failure, I ran into this issue. It seems that if you try to set a style on the body, right after load, and then read it back via getComputedStyle, it won't get set. Interestingly, this only happens the first time. If you immediately set the same style again, it works. Test case attached. 1896085 1 ahmad.saleem792 2022-09-03 14:39:05 -0700 While trying to reproduce this using attached test case, I get following error in Chrome Canary 107 and Firefox Nightly 106 (just pasting "Chrome" error message but it is same in both): Uncaught TypeError: window.getComputedStyle(...).getPropertyCSSValue is not a function at test (attachment.cgi?id=280758:17:56) at window.onload (attachment.cgi?id=280758:28:5) While Safari Technology Preview 152 (on macOS 12.5.1 in Private Window) jut shows: PASS: rgb(255, 0, 0) is rgb(255, 0, 0). PASS: rgb(255, 0, 0) is rgb(255, 0, 0). Just wanted to share updated results. Thanks! 1896205 2 ap 2022-09-04 13:45:34 -0700 The test fails in other browsers because on deprecated getPropertyCSSValue. Since it passes in Safari now, config changed. 280758 2016-06-07 18:22:22 -0700 2016-06-07 18:22:22 -0700 Test case test.html text/html 805 sam PHByZSBpZD0iY29uc29sZSI+PC9wcmU+CjxzY3JpcHQ+Cgp2YXIgc3R5bGVFbGVtZW50ID0gZG9j dW1lbnQuY3JlYXRlRWxlbWVudCgic3R5bGUiKTsKZG9jdW1lbnQuaGVhZC5hcHBlbmRDaGlsZChz dHlsZUVsZW1lbnQpOwp2YXIgc3R5bGVzaGVldCA9IHN0eWxlRWxlbWVudC5zaGVldDsKCmZ1bmN0 aW9uIGxvZyhtc2cpCnsKICAgIGRvY3VtZW50LmdldEVsZW1lbnRCeUlkKCdjb25zb2xlJykuYXBw ZW5kQ2hpbGQoZG9jdW1lbnQuY3JlYXRlVGV4dE5vZGUobXNnICsgIlxuIikpOwp9CgpmdW5jdGlv biB0ZXN0KHZhbHVlLCBleHBlY3RlZFZhbHVlKQp7CiAgICBzdHlsZXNoZWV0Lmluc2VydFJ1bGUo ImJvZHkgeyBjb2xvcjoiICsgdmFsdWUgKyAiOyB9IiwgMCk7CgogICAgdmFyIHN0eWxlID0gd2lu ZG93LmdldENvbXB1dGVkU3R5bGUoZG9jdW1lbnQuYm9keSkuZ2V0UHJvcGVydHlDU1NWYWx1ZSgi Y29sb3IiKTsKICAgIGlmIChzdHlsZS5jc3NUZXh0ID09IGV4cGVjdGVkVmFsdWUpCiAgICAgICAg bG9nKCJQQVNTOiAiICsgc3R5bGUuY3NzVGV4dCArICIgaXMgIiArIGV4cGVjdGVkVmFsdWUgKyAi LiIpOwogICAgZWxzZQogICAgICAgIGxvZygiRkFJTDogIiArIHN0eWxlLmNzc1RleHQgKyAiIGlz IG5vdCIgKyBleHBlY3RlZFZhbHVlICsgIi4iKTsKCiAgICBzdHlsZXNoZWV0LmRlbGV0ZVJ1bGUo MCk7Cn0KCndpbmRvdy5vbmxvYWQgPSBmdW5jdGlvbigpIHsKCiAgICB0ZXN0KCJyZWQiLCAicmdi KDI1NSwgMCwgMCkiKTsKICAgIHRlc3QoInJlZCIsICJyZ2IoMjU1LCAwLCAwKSIpOwoKfQoKPC9z Y3JpcHQ+Cg==