Powershell Universal Dashboard White Screen


We’ve recently purchased a digital signage system with which we’re having issues displaying our dashboard as proof of concept. Any dashboard page fails to load with a blank white screen. I’ve been told by their devs that it is running through Chromium 63.0.3239.132 which after some testing by myself I’ve been able to replicate the error.
ReferenceError: AbortController is not defined
Some googling suggests that AbortController was added in a later version of Chrome ~April 2018.

While it seems ridiculous and they are using such an old version of Chromium, is there anything I can do my end to work around this error or am I out of luck?