How can I use deflated/gzipped content with an XHR onProgress function?

Question

I\'ve seen a bunch of similar questions to this get asked before, but I haven\'t found one that describes my current problem exactly, so here goes:

I have a page whi

Answer 1

We have created a library that estimates the progress and always sets lengthComputable to true.

Chrome 64 still has this issue (see Bug)

It is a javascript shim that you can include in your page which fixes this issue and you can use the standard new XMLHTTPRequest() normally.

The javascript library can be found here:

https://github.com/AirConsole/xmlhttprequest-length-computable