Contents tagged “TIL”

There are 2 contents with this tag:

• TIL: if you cache images with a Service Worker, and you have a Content Security Policy, the image's origin should be in both the img-src and connect-src directives.

  Details from @qubyte: https://qubyte.codes/blog/content-security-policy-and-service-workers

  • 3rd July 2020
  • security, CSP, ServiceWorker, TIL
  • 9 webmentions
  • permalink

• TIL:

  Paint timing metrics are too optimistic. In 85-95% of cases, they are recorded before any pixels are actually rendered to the screen.

  From @Joseph_Wynn's article for @SpeedCurve: https://speedcurve.com/blog/an-analysis-of-chromiums-paint-timing-metrics/

  • 25th June 2020
  • WebPerf, TIL
  • 1 webmention
  • permalink

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