RESOLVED DUPLICATE of bug 225733205768
Resource Timing: secureConnectionStart == 0 when origin resource is requested from is reconnected to via Resource Hint 
https://bugs.webkit.org/show_bug.cgi?id=205768
Summary Resource Timing: secureConnectionStart == 0 when origin resource is requested...
Andy Davies
Reported 2020-01-04 13:28:56 PST
Example Test Case: https://andydavies.github.io/browser-bug-demos/secureConnectionStart/preconnect.html Page preconnects to res.cloudinary.com, after a short delay (to allow for a connection to be established) sets image URL, then when image loads, queries resource timing entries and inserts them into the page. DNS and TCP phases of connection are clamped to fetchStart as they occurred before it) secureConnectionStart is zero rather than being clamped in the same way Chrome has similar behaviour (https://bugs.chromium.org/p/chromium/issues/detail?id=1039080) but the behaviour seems to change depending on whether DevTools is open, Safari's behaviour remains consistent regardless of whether Inspector is open or closed.
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Radar WebKit Bug Importer
Comment 1 2020-01-05 19:57:05 PST
<rdar://problem/58331361>
Ahmad Saleem
Comment 2 2023-09-26 17:12:38 PDT
I believe this is similar to what was fixed here: https://commits.webkit.org/237727@main CCing - Alex and Chris for their input.
Alex Christensen
Comment 3 2023-10-04 17:41:04 PDT
Yep. Thanks, Ahmad! *** This bug has been marked as a duplicate of bug 225733 ***
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