How to get URL from browser address bar?

Question

I wanted to do some js analytics, so I would need to know how to get whatever the user entered in the address bar as a js variable so I can know what are the most common misspellings. That way I can make redirects for the most common misspellings to the correct adresses and reduce 404 page requests.

example of user input in browser:

https://stackoverflow.com/questions

.........................................

I have tried using

document.location 

but that shows what page the user is on (i.e. 404 page address), not what they have typed

Answer 1

This gives you the exact url the user is on:

document.location.href 

There is no way of determining what the user typed before the request is submitted (for security-reasons).