JSzip does not seem to be mantained anymore, with the latest commit dated 2 years ago Investigate if there are other zip libraries which could be used instead. Candidates - ~[zip.js](https://github.com/gildas-lormeau/zip.js)~ - [x] [yazl](https://github.com/thejoshwolfe/yazl)/[yauzl](https://github.com/thejoshwolfe/yauzl)
