M4A Audio is not handled

[thoni56]

Apple format audio is converted to octetstream. A file with this signature (using file):

... ISO Media, Apple iTunes ALAC/AAC-LC (.M4A) Audio

will result in

data:application/octet-stream;base64,AAAAIGZ0e...

This cannot be played by the HTMLAudioElement.

[heldr]

Sorry for the delay.

Apparently this extension is not part of IANA's Media types spec as per https://www.iana.org/assignments/media-types/media-types.xhtml#audio , which is followed by datauri submodule https://github.com/data-uri/mimer

Other than that, I believe is a good idea to allow custom mimetypes in datauri as per mimer submodule.

[heldr]

mimer parses apache mime types file(based on IANA's spec), the good news is that m4a will be supported on next datauri release 😄

As per mime.types from Apache:

audio/mp4					m4a mp4a

[heldr]

Fixed in https://github.com/data-uri/datauri/releases/tag/v2.0.0