I have been using square for several years with this application. Suddently, I am getting auth errors:
Request URL:
https://web.squarecdn.com/1.45.3/main-iframe.html?applicationId=appId&hostname=my-url
Request Method: GET
Status Code: 403 Forbidden
Remote Address: 18.164.174.51:443
Referrer Policy: strict-origin-when-cross-origin
Nothing changed on my end, why would this suddenly start happening?
Is this the JS library your form is connected too web.squarecdn.com/v1/square.js? 
I’m sorry. I don’t remember. I downloaded the file locally a year ago.
Okay, if it was a year ago then that should have been the correct JS library.
Any other ideas about what I can try?
Do you have access to the code to make sure its configured correctly?
Sure, but it was working for over a year. I’m the only one who has access and I haven’t changed anything and have verified that nothing changed against the desired state repo.
thanks, I’ll be moving to Stripe
What’s your application ID? Also can you confirm whether or not your using the Web Payments SDK?