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As far as I can tell many CDNs will gladly serve their scripts over HTTP if requested: http://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js http://c

by simias 7y ago

As far as I can tell many CDNs will gladly serve their scripts over HTTP if requested: http://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js http://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.mi... I don't know if what's the reasoning behind that.

kortilla 7y ago
IIRC there was a time when a browser (maybe IE 6?) would generate a mixed content warning when you would try to load https resources in a http served page.
FDSGSG 7y ago
When visited over HTTP that CDN sets "Alt-Svc: h3-23=":443"; ma=86400", telling the browser that (encrypted) HTTP3/QUIC is available. If you ever manage to load that CDN over HTTPS/QUIC it sets a HSTS header so all further pageloads will go over HTTPS.