Bug 223513

Summary: chromestatus.com very slow to load
Product: WebKit Reporter: Sam Sneddon [:gsnedders] <gsnedders>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ap, bfulgham, koivisto, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
URL: https://www.chromestatus.com/features

Sam Sneddon [:gsnedders]
Reported 2021-03-19 07:42:02 PDT
Locally, with r274641, we end up with three frames >1s, with 15.69s spent in layout between them. This is massively worse than page load in Chrome or Firefox.
Attachments
Alexey Proskuryakov
Comment 1 2021-03-22 14:58:09 PDT
I cannot reproduce us being massively slower with a recent macOS beta. It's clearly slower than Chrome, but only by ~1 second until the page is fully rendered.
Radar WebKit Bug Importer
Comment 2 2021-03-26 07:42:13 PDT
Sam Sneddon [:gsnedders]
Comment 3 2021-03-26 08:47:07 PDT
(In reply to Alexey Proskuryakov from comment #1) > I cannot reproduce us being massively slower with a recent macOS beta. It's > clearly slower than Chrome, but only by ~1 second until the page is fully > rendered. Caused by a content blocker extension, seemingly. Followed up on Radar until we decide whether it's a WebKit or a Safari issue.
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