Validate external URLs return 200

[janfaracik]

Fairly common in static sites, e.g. jenkins.io does it:

https://github.com/jenkins-infra/jenkins.io/blob/master/Makefile#L27-L28

I've seen it elsewhere too.

Ideally not something enabled by default as I don't really like tests hitting the network if possibly, maybe it could only run in CI?

Originally posted by @timja in #363 (comment)

[biru-codeastromer]

Hello Sir @janfaracik , can I work on this ? Please let me know . Thanks !

[janfaracik]

Hello Sir @janfaracik , can I work on this ? Please let me know . Thanks !

Hey, go for it :)

[biru-codeastromer]

Hey, go for it :)

Thanks Sir , will be raising a PR soon !

[biru-codeastromer]

Hey, go for it :)

Hello Sir, I have raised a PR , please let me know if my approach is proper there #392 .
Thanks