So you have tested abc.tersus can get the lat and lng, right? I do put the trigger although didn't uploaded. Same issue of no response received.
I'm in China, if you tested ok, then mostly the goverment blocked googleapis? Please help me check the abc.tersus run ok or not. I put the abc on your server as: kin.tersus.com/a but on mobile phone still failed get the location.
For best results, use the Firefox browser..