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WebPagetest Forums - W3C User Timing Support

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Full Version: W3C User Timing Support
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First, thanks Patrick for the inclusion of this within the 2.12 release.

Second, my search skills are failing today.

I'm looking for confirmation that the User Timing API is supported by current versions of the top 4 browsers (Chrome/FF/IE/Safari).

Can anyone comment on this?

Thank you,
I believe only Chrome and IE have user-timing built-in, but it's a trivial polyfill for any browser:

WPT will report it regardless if it is built-in or polyfilled.
Thank you, Patrick!

I have tried this with a private instance setup but I am seeing that webpagetest is only able to pick up marks for the main page but not any marks emitted on embedded pages (ex. iframes).

Is this a known bug?
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