Apr 09, 2021, 2:18 PM
Apr 09, 2021, 3:08 PMHello Martin!
You are having a strange and unexpected experience with the CDN, I only see this happening if your network is redirecting traffic to GitHub endpoints.
Here are some techie stuff that might help you and your network team diagnose the issue if it persists on your end.
Currently if you make an HTTP request (non HTTPS), it will respond with a permanent redirect to HTTPS endpoint, so your result very strange for us.
I have just checked and I am getting the expected values:
- HTTP - 301 redirect, invalid resource address
- HTTPS - 404 not found, invalid resource address
$ curl -i http://speed.ext.net/ext.net/3.3.0 HTTP/1.1 301 Moved Permanently
- HTTP - 301 redirect, valid resource address
$ curl -i https://speed.ext.net/ext.net/3.3.0/ HTTP/2 404
- HTTS - 200 found, valid resource address
$ curl -I http://speed.ext.net/ext.net/3.3.0/extnet/extnet-all.js HTTP/1.1 301 Moved Permanently
Check again, if you still get this error, check from other networks and check with your network if you are having any redirects to GitHub resources.
$ curl -I https://speed.ext.net/ext.net/3.3.0/extnet/extnet-all.js HTTP/2 200
Currently, speed.ext.net should be resolving, DNS-wise, to the following IP addresses:
Queries to one of those IP addresses should show the following headers; different headers suggest tampering with your connection:
;; ANSWER SECTION: speed.ext.net. 98 IN CNAME extnet.github.io. extnet.github.io. 3010 IN A 22.214.171.124 extnet.github.io. 3010 IN A 126.96.36.199 extnet.github.io. 3010 IN A 188.8.131.52 extnet.github.io. 3010 IN A 184.108.40.206
While the output above is correct for current state, this may change without notice in the future, so you should use these headers as base within the next few days but there's no guarantee the HTTP headers will look the same, say, in year 2022 or later.
$ curl -I http://220.127.116.11/ HTTP/1.1 404 Not Found Server: GitHub.com Content-Type: text/html; charset=utf-8 x-origin-cache: HIT ETag: "5f77c9f3-239b" Content-Security-Policy: default-src 'none'; style-src 'unsafe-inline'; img-src data:; connect-src 'self' X-GitHub-Request-Id: BD62:29B2:A886C:3AECE1:60706D5E Content-Length: 9115 Accept-Ranges: bytes Date: Fri, 09 Apr 2021 15:06:06 GMT Via: 1.1 varnish Age: 0 Connection: keep-alive X-Served-By: cache-gig17035-GIG X-Cache: MISS X-Cache-Hits: 0 X-Timer: S1617980766.200696,VS0,VE116 Vary: Accept-Encoding X-Fastly-Request-ID: eadf4d4a1c52f881c0f800feb9ef190b3348e5ea
Hope this helps!Last edited by fabricio.murta; Apr 09, 2021 at 3:10 PM.
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