Can't upload file on iOS duo to issues with input accept for custom file extension #146
Description
It's amazing the alphatab works on any device, including iOS, however, duo to a lack of full implementation of the accept from input file in iOS, currently we can't test the player on iOS devices. in iOS, the validation only works for mime types, however, guitarpro files, cap and musicxml files don't have a particular mime type (except for the xml). So we might want to allow any file when loading the website on iOS devices, and have a validation.
Affected Page
Any player that needs upload and uses accept="*.gpx,etc"
https://caniuse.com/input-file-accept
Expected Results
Be able to upload a file on iOS devices, maybe validation via JS, (maybe with https://www.npmjs.com/package/attr-accept or just custom).
Observed Results
We can't select a file on iOS devices because the html tag has an issue on iOS based on the input accept.
Your environment
any iOS device
PS: I am unfamiliar with android, but caniuse doesn't mention any issues.
https://caniuse.com/input-file-accept
