YukariTea

In the callback function `function (relativePath, file) {...}` for `forEach` you will need to identify the MIME type from the extension in `file.name`. If you cannot trust that the file...

This is a documented issue: https://stuk.github.io/jszip/documentation/limitations.html Only the zips are different, the metadata may be different but the files' content should be the same, I think. You would have to...

Use [JSON.parse()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse) to convert JSON to a JavaScript object when you need to read it as a JavaScript object.