-const videoCaptionTypes = CONSTRAINTS_FIELDS.VIDEO_CAPTIONS.CAPTION_FILE.EXTNAME
- .map(v => v.replace('.', ''))
- .join('|')
-const videoCaptionsTypesRegex = `text/(${videoCaptionTypes})`
-
+const videoCaptionTypes = Object.keys(VIDEO_CAPTIONS_MIMETYPE_EXT)
+ .concat([ 'application/octet-stream' ]) // MacOS sends application/octet-stream ><
+ .map(m => `(${m})`)
+const videoCaptionTypesRegex = videoCaptionTypes.join('|')