Already exist, it’s called hdr and almost all modern camera supports them. But they take more time.

For WASM you can probably use tools like ghidra to decompile and read.

Minified js not a lot better then raw ASM, single letter names and crazy optimisation patterns will make your life hell. Patching both I think is out of the question, maybe just inject some new js that interact with the DOM.

Did a bit of reverse engineering on binaries in my life, and also spent too much time reading the youtube minified js. Both are hard as hell.