Bug Report OBS Studio 0.15.4 crash when adding a browser source

[Unimatrix36]

When I add a browser source OBS Studio freeze (not responding).
I can add the browser source, but every time I put the link to Twitch Alerts in the properties for the browser source OBS Studio freeze and crash.

Log file:

https://gist.github.com/411a411be206dc2e6aaae7a7061fcaa2