import ffmpegCoreFile from "url:../vendor/ffmpeg-core.js"URL.createObjectURL is not a function which is coming from ffmpeg, but I don't think it's a problem with ffmpeg, and is likely just that I don't understand how to implement this properly in Plasmo. There is a non-Plasmo example of this idea here https://github.com/ffmpegwasm/chrome-extension-app