Error hotspot connection to test the app


Hi everyone.
I am trying to connect my device in “live testing” mode with internet connection of the PC via hotspot of the device, but in this mode I always get the error “Ooops! We tripped on a Bug!” with these notes:

"Technical Data to be Submitted:

notes = Browser: Mozilla / 5.0 (Windows NT 10.0; Win64; x64) AppleWebKit / 537.36 (KHTML, like Gecko) Chrome / 73.0.3683.86 Safari / 537.36
foundIn = v1.0-31-gd329850-dirty
faultData = (SyntaxError): Failed to execute ‘open’ on ‘XMLHttpRequest’: Invalid URL
projectId = 6036767049252864 "

If I work without a device hotspot connection but with an ADSL line, I don’t see the problem.