javascriptregexstringurlhostname

javascript regex seems to be ignoring anchor


I am trying to make a javascript bookmarklet that takes the current page url, modifies the domain to a different one, then opens that in a new tab.

for example, given the url:

https://prod.abc.com/lorum/a-1234/b/c.d/e/1234#fg:hij

I want to run the bookmarklet and have it open

https://dev.abc-1-de.net/lorum/a-1234/b/c.d/e/1234#fg:hij

This is my current code

javascript:(function() {window.open(window.location.toString().replace(/^https:\/\/.*?abc.com\//, 'https://dev.abc-1-de.net/'), '_blank');})() 

When I run

window.location.toString().replace(/^https:\/\/.*?abc.com\//, 'https://dev.abc-1-de.net/')

I get the url I'm expecting. However, when I run the whole thing together, the new tab that opens is directed to

https://prod.abc.com/lorum/a-1234/b/c.d/e/https://dev.abc-1-de.net/lorum/a-1234/b/c.d/e/1234#fg:hij.

To me, this seems like the regex is ignoring my ^ anchor for some reason, but I have no idea why that would be happening only when it is passed into window.open.


Solution

  • Turns out, the issue was a typo in the replacement url I was giving, as well as in the way that window.open works. The replacement url I was giving in my unobfuscated code had the typo https//: instead of https:.

    This made the window.open function think this was a relative url instead of an absolute, and so it was appending it instead of properly redirecting.