Weekly github digest (Web Performance WG specs)

Issues
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* w3c/performance-timeline (+1/-1/💬2)
  1 issues created:
  - PerformanceObserver is unable to measure some timing attributes  (by SemihGk)
    https://github.com/w3c/performance-timeline/issues/131 

  2 issues received 2 new comments:
  - #131 PerformanceObserver is unable to measure some timing attributes  (1 by SemihGk)
    https://github.com/w3c/performance-timeline/issues/131 
  - #117 supportedEntryTypes API has some issues (1 by rniwa)
    https://github.com/w3c/performance-timeline/issues/117 

  1 issues closed:
  - PerformanceObserver is unable to measure some timing attributes  https://github.com/w3c/performance-timeline/issues/131 

* w3c/user-timing (+1/-0/💬0)
  1 issues created:
  - StructuredDeserialize should be used; serialization records cannot be returned from IDL getters (by jeremyroman)
    https://github.com/w3c/user-timing/issues/59 



Pull requests
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* w3c/performance-timeline (+0/-0/💬2)
  1 pull requests received 2 new comments:
  - #118 supportedEntryTypes: cache the FrozenArray (2 by rniwa, npm1)
    https://github.com/w3c/performance-timeline/pull/118 


Repositories tracked by this digest:
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* https://github.com/w3c/hr-time
* https://github.com/w3c/performance-timeline
* https://github.com/w3c/resource-timing
* https://github.com/w3c/navigation-timing
* https://github.com/w3c/user-timing
* https://github.com/w3c/beacon
* https://github.com/w3c/page-visibility
* https://github.com/w3c/preload
* https://github.com/w3c/resource-hints
* https://github.com/w3c/requestidlecallback
* https://github.com/w3c/device-memory
* https://github.com/w3c/paint-timing
* https://github.com/w3c/longtasks
* https://github.com/w3c/server-timing