How to change domain on links but preserve the path?

Question

I want to redirect the link from facebook.com/abcdef to m.facebook.com/abcdef via userscript.

Using:

• window.location.replace("https://m.facebook.com"); does not go to m.facebook.com/abcdef

• window.location.replace(window.location.href.replace('https://', 'https://m.')); does, but the page keeps loading that I can't scroll down to read without disruption.

Answer 1

Most likely the meta include rules of your user script match https://m.facebook.* as well. Thus the user script is started after every redirection again.

Just exclude https://m.facebook.* from your rules or use a more specific needle in your invocation of the replace method, e.g. replace 'https://facebook.' by 'https://m.facebook.'.