get_pagenum_link and double domain

[palmiak]

get_pagenum_link generates links with double domain, for example:
​http://domainname.com/http://domainname.com/page/2

The problem doesn't exist on every server and it only appers when you are using query_posts (probably new WP_query also).

A the start of get_pagenum_link() there is $request = remove_query_arg( 'paged' ); which gets data from $_SERVER. When I'm not using query posts [REQUEST_URI] => /test/page/3/, but after using it I get [REQUEST_URI] => http://domainname.com/test/page/3/.

I think there should be a check if REQUEST_URI doesn't contain domainname.

This bug was also found ​https://wordpress.org/support/topic/error-in-link-url-domain-name-appears-twice

[SergeyBiryukov]

When I'm not using query posts [REQUEST_URI] => /test/page/3/, but after using it I get [REQUEST_URI] => http://domainname.com/test/page/3/.

Could you provide a piece of code to reproduce the issue?

[palmiak]

​http://pastebin.com/WcYbTXms

I'm using get_pagenum_link2 to see how the $request behaves, but It's a normal get_pagenum_link with some echoes.

When you remove the 83th line than everything will work.

Still - you can have problem with reproducting it. I only have this problem only on one server.

[jeremyfelt]

@palmiak what web server software are you using?

Related #17047

[palmiak]

I'm closing this because I'm not able to repeat the bug anymore - probably was fixed somewhere in between.