Nic Jansma

:+1: I've heard feedback about wanting control over the threshold as well.

Yeah, if LongTasks supported by-default buffering and the buffered flag, I don't think we'd need PerfTimeline support. But, I understand the overhead concerns -- looking forward to hearing more. Posted...

One place where a blocking API could be helpful is for cases of using compression in unload, i.e. beaconing data for analytics usage. RUM libraries like boomerang.js hook into `pagehide`...

Discussed on 9/1 W3C WebPerf Call: https://github.com/w3c/resource-timing/issues/345#issuecomment-1234602117

Some points from the [9/1 W3C WebPerf call](https://docs.google.com/document/d/1-l6NI7s2I-O4d7WOFRifzl3zR_Wvqitvu1ZazFy4wPI/edit#): * Could also be useful to know the timing difference between `finalResponseHeadersEnd` and another new field like `finalResponseBodyStart`, AKA if headers are...

Question: Would this attribute be gated by same-origin or TAO/CORS? For the `"cache"` status: In RUM we like to know whether resources are cached or not. For same-origin/TAO we utilize...

Summary from 9/1 W3C WebPerf call: * Need to figure out cross-origin/TAO/CORS limitations * Possible objections from Safari, to be discussed further at TPAC in ~2 weeks

Hi @quintenp! We do not currently calculate Time to Interactive (TTI), or Time to Visually Ready (TTVR) metrics for SPA Soft Nav beacons, as we do not believe the Page...

Yeah that sounds like a bug. We'll work on a fix to remove `c.tti` from all Soft Nav beacons.

@sukratkashyap you're right, it looks like `spa_navigation` is only being triggered if an `onComplete` function is used during `route_change()`, and during all Hard navigations. We can make sure to fire...