Admin users on slow connections may find that it takes more than 5 minutes to upload audio files. To avoid errors due to long request times, this PR implements chunked uploads. This splits each upload into multiple pieces, the size of which is calculated to be possible to upload over an average DSL connection in less than 5 minutes. The user experience is not changed, but each individual request made by the browser will definitely complete in less than 5 minutes on any sane internet connection, making errors less likely.
Admin users on slow connections may find that it takes more than 5 minutes to upload audio files. To avoid errors due to long request times, this PR implements chunked uploads. This splits each upload into multiple pieces, the size of which is calculated to be possible to upload over an average DSL connection in less than 5 minutes. The user experience is not changed, but each individual request made by the browser will definitely complete in less than 5 minutes on any sane internet connection, making errors less likely.