After doing doing something on the site (can't remember specifically what but it could have involved paying an overdue bill) the website just started getting stuck "Loading".
Being a web developer I checked the network traffic and realised that it was getting a Bad Request response to a call going to https://api.platform.agl.com.au (the first call to this sub-domain). The response to that request was trying to verify that I am not a bot. I would have no way of viewing that response were I not looking at network traffic.
I passed its check to make sure I was in fact a human being, and then it happily went back to functioning correctly.
I would recommend either not placing a bot check on the api, or if you do ... make sure the frontend can handle it.
