Hey all!
I have finished setting up the webhook on our server which is hosting the development build of our project. I can navigate to the page which lets us know that it is up and running:

When linking to this in the 'Bitbucket -> Repository -> Settings -> Webhooks' section, we get an "Invalid Url" error when saving.
So far as I can tell, everything is configured correctly as per this tutorial, so I was wondering if anyone would be able to provide a hand!
Thank you 