Wp-calypso: Audio Block: Error Uploading Accepted File Type

[brookewp]

Steps to reproduce

1. Create new page or post
2. Add Audio Block
3. Upload m4a file
4. Receive error "file-name.m4a: Sorry, this file type is not permitted for security reasons."

What I expected

m4a is an accepted file type, so I expected to be able to upload it. It's possible still to upload the file to the media library and then choose the file from the media library within the audio block.

What happened instead

I received error warning "file-name.m4a: Sorry, this file type is not permitted for security reasons.".

Screenshot / Video

Discovered from user in chat #8569345

[arunsathiya]

@brookewp I don't think this is a Gutenberg-specific issue, but m4a uploads are failing on core WordPress which has been reported here https://core.trac.wordpress.org/ticket/45615#comment:60

I assume the error you have indicated happens on classic/Calypso editor as well, right?

[brookewp]

@arunsathiya - I've tested in classic/calypso without error. It opens happens in gutenberg. Here's an example of classic: http://cld.wthms.co/0Xq8vh

[brookewp]

Just tested on .com in block editor and it worked without error, I'll close this now.