Changing room URL once page has loaded does not go to correct room

[ojack]

Describe the bug
When you change the 'room' parameter of the page without reloading the page, LiveLab will use the previous room, rather than the updated room

To Reproduce
Steps to reproduce the behavior:
When you change the 'room' parameter of the page without reloading the page, LiveLab will use the previous room, rather than the updated room

Expected behavior
Check for user update in the URL when 'join' is pressed

Desktop (please complete the following information):

• OS: Ubuntu 18.04
• Browser Chromium
• Version 86.0.4240