feat: add CDN

[andipaetzold]

Creating a CDN for Forma using Fastly Compute to host the Geist font: https://vercel.com/font.

Adds a GH action that auto-deploys the CDN when merging to main.

The files will be deployed as https://cdn.f36.contentful.com/*. You can try an example deploy with an older font version: https://cdn.f36.contentful.com/fonts/geist-sans-1.3.0.woff2

[vercel]

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Name	Status	Preview	Updated (UTC)
forma-36	✅ Ready (Inspect)	Visit Preview	Oct 23, 2024 11:13am

[changeset-bot]

⚠️ No Changeset found

Latest commit: 426619a

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
CommonJS	112.03 KB (0%)	2.3 s (0%)	1.8 s (+19.72% 🔺)	4 s
Module	110.84 KB (0%)	2.3 s (0%)	1.9 s (-7.73% 🔽)	4.1 s

[github-actions]

Marking pull request as stale since there was no activity for 30 days

[denkristoffer]

Today I learned.

[denkristoffer]

Just a general question but shouldn't a CDN generally be served from a different domain to avoid wasting bytes on cookies from the web app?

[andipaetzold]

Just a general question but shouldn't a CDN generally be served from a different domain to avoid wasting bytes on cookies from the web app?

Yes, to save every single byte, we would need to use a totally separate domain. For the Web App itself, the HTML is loaded from app.contentful.com and the static files from static.contentful.com to reduce the number of cookies. Not all cookies have strict same site policy, so they are also sent to static.contentful.com.

Fonts are only loaded once per page load (+within apps) and are not render blocking. Having a separate domain would have an insignificant performance improvement. By using a contentful.com subdomain, customers inspecting the network traffic know that the traffic goes to Contentful and not a third party service.