js-self-profiling
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WICG
Proposal for a programmable JS profiling API for collecting JS profiles from real end-user environments
I recently started experimenting with this API at [Kapwing](https://www.kapwing.com/), a modern browser based video editor. We’ve had great success using this to implement a reporting system. We’ve even fixed several...
(Admittedly, this is implementation-specific, but.. this implementation quirk is the _reason_ for this spec'd header..) I heard some concerns about the overhead of when `document-policy: js-profiling` is set. (Before `Profiler.start()`...
Discussions with @acomminos lead me to believe that the Document-Policy header requirement is superfluous and we can instead launch the profiler lazily when the first `new Profiler` is created. Currently,...
We discussed this morning about the new marker proposal: https://github.com/w3ctag/design-reviews/issues/682 My understanding is that it gives developers the capability to know if below the deepest frame of JS execution (same-origin...
We ([Sentry.io](http://sentry.io/)) are experimenting with adding support for JS Self Profiling to our JavaScript SDK family, see PR in https://github.com/getsentry/sentry-javascript/pull/7273. Initial results look promising and profiles look valuable, especially when...
While crawling [JS Self-Profiling API](https://wicg.github.io/js-self-profiling/), the following links to other specifications were detected as pointing to non-existing anchors: * [ ] https://w3c.github.io/webappsec-permissions-policy/document-policy.html#algo-get-policy-value * [ ] https://w3c.github.io/webappsec-permissions-policy/document-policy.html#configuration-point * [ ] https://w3c.github.io/webappsec-permissions-policy/document-policy.html#configuration-point-type...
In the frames array of the API output, for each frame the API point to the function declaration in the bundle, for example, for the following bar function, the API...
Just a question, not a bug: It says in the ReadMe: > Mozilla's perf.html visualization tool for Firefox profiles or Chrome's trace-viewer (chrome://tracing) UI could be trivially adapted to visualize...
Hey everyone, really excited to see this spec move forward, I think the potential for further improving the user experience with this is big and I'm looking forward to seeing...
You may want to reference this from the BFCache meta bug: https://github.com/whatwg/html/issues/5880 +CC @rakina I was wondering what kind of interation this feature will have with the Back-forward cache. For...