Latest notes
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-srcandconnect-srcdirectives.Details from @qubyte: https://qubyte.codes/blog/content-security-policy-and-service-workers
@bagder hi Daniel, reading https://daniel.haxx.se/blog/2016/08/18/http2-connection-coalescing/ (yes, I'm late 😅)
If DNS B.example.com returns
192.168.0.2and192.168.0.3, is TLS really enough to be sure it also works on192.168.0.1?BTW, there's a typo near the end: "both IPv4 and IPv4 addresses".
Google's Structure Data testing tool finds only the BreadcrumbList type in my article pages.
But using @redirectionio's new Structured data validation tool, I've been able to fix an issue with a second type, WebPage, that Google didn't see. 👍
I guess we'll (unfortunately) see a lot of turtles in Firefox soon, while browsing the Web with devtools open… 🐢
JUST LANDED in Firefox Nightly:
🐢!
Appears when the server response time for a request exceeds the recommended limit of 500 ms (adjustable in about:config).
Awesome dev work by @b4bomsy and planning by @digitarald & @janodvarko!
If you spot it and it helps, let us know!H
Wondering why my #Workbox based Service Workers breaks images on https://nicolas-hoizey-com.netlify.app/notes/ but not https://nicolas-hoizey.com/notes/
It's exactly the same code. 🤷♂️
This new monitoring tool based on #Eleventy, built by @zachleat, is awesome! 😍
New project: Speedlify 🐇
A self-hosted dashboard to continuously measure and publish web site performance statistics using Lighthouse and Axe.
Demo:speedlify.netlify.app/ssg/c
Blog post:www.zachleat.com/web/speedlify/LIt took me just a few minutes to built my dashboard for multiple sites:
https://webperf-monitoring.netlify.app/Looks like #Dareboost liked improvements made yesterday evening! 💪
Speed Index at 800 on 3G, despite a laaate 530 ms TTFB, not bad! 🤔
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/
Would you play @esviji on your TV/console if d-pad/gamepad were supported?
I should "adapt to input" as @grigs told us on @alistapart: https://alistapart.com/article/adapting-to-input/
Play and tell me: https://play.esviji.com/
Browse all notes
Years: 2020