How to Remove the video track from an .mp4 file?

# Remove the video track from an .mp4 file? Exists the JS program that can do just one function: **remove video from an mp4 media file**? That is, it works like the function: `ffmpeg -i input.mp4 -an output.mp4`. It's important that this program is compatible with all browsers and doesn't depend on MSE API (iOS10+ Safari **doesn't support** MSE API and Codecs API) ffmpeg.js can do this task, but it takes `26 mb` of memory. I need a solution that takes up to `3 mb max` of memory and works only with `.mp4` container. P.S. MP4Box.js is not suitable because the final result requires MSE and Codecs API which iOS Safari does NOT SUPPORT!