Also:
- Add client_id with the name of the app (for possible future use)
- Add response_type simply to provide all required oauth2 parameters for reference
- For the URL to be opened in Browser: Forward the callback/redirect_uri URL provided by the server
- Use a hardcoded variable for HTTPS enforcement, for easier debugging
- Also fixed URLs, the / after ${this.serverConfig.address} had to be removed, because during Connection flow the URL is now (re)set correctly uniformly
- Removed now uneccessary callback? parameter from first auth request
* Prefer HTTPS if no protocol given
* Retry with HTTP if no protocol given and HTTPS TCP establishment was not successful
* Do validation checks, i.e. control for unexpected redirects. Don't allow for protocol downgrade
* Provide good user messages on failure
* Fix a bug where it would use the wrong protocol after connecting bc. of unchecked redirect
* Reworked getRequest(...) to get information about the resulting URL and detailed errors