I am working with alexa appinventor (https://alexa.appinventor.mit.edu).
After creating a new project and adding a skill (Button Add Skill…), I wanted to log in to Amazon (Button Login to Amazon), but I got a blank window:
The url of the opened window:
url:MIT App Inventor - Login to Amazon
gives an error-description when you look at the details of the url.
I have an Amazon Developer Account and used alexa.appinventor already in year 2020.At this time it worked fine!
I hope someone of the appinventor developers can help to solve the problem,
thanks in advance!