You want to make class files for a Chrome book for others like myself to use. As a file extension. Upload or download buttons. Drag and drop buttons issues. But something. And it's not working out. First off, the environment you're working on has to be for many users. So environmental variables and parameter used in these class files are for the whole network and not just yourself. It has to be passed so that many users can use your file extensions on chrome. So that's the reason why it is reading a not so good remark.
I think I may have an actual idea for this problem. This is a java environment, so you're working on some thing for JVM or Java host site to be on your computer. The actual hostsite is local. So it's
http://localhost8080 url which is on some root directory. But you're making class files to be on some website that uses Java Virtual Machine. Also using a
https://localhost8080 url. This is probably the standard java kit. Where the packages are all set and pre-made for that specific environment. Using JVM and setting up a local host site. That's probably the reading why it's a reading like that. You're trying to re-engineer the whole sdk kit java uses.