I have an idea how to improve the work with Service Worker (decoders)

[GlosusHidden]

For example, you need to open a file of 100 slides that need to be processed through the decoder jpeg2000.
So every time you download decode-jpeg2000 and then 'jpx.js', 'util.js', 'arithmetic_decoder.js' from importScritps.

It seems to me that this is not very good. It is a lot of traffic and you need to store decoders somewhere in the internet.

So idea:

1. Merge decoder and all it's importScritps in one file
2. Squeeze it
3. Import it as string
   const jpeg2000 = require('raw-loader!./jpeg2000.js');
4. Convert to Blob:
   const jpeg2000Blob = new Blob([jpeg2000], {type: 'application/javascript'})
5. Create URL from Blob:
   URL.createObjectURL(jpeg2000Blob)
6. Use this result URL as decoderScripts for library.

Then everything will work offline

[ivmartel]

Thanks, it looks interesting! I guess it is similar to what is done in the background of the web-workers handling of webpack.

[ivmartel]

It also made me realise about #993, so thanks again!

[ivmartel]

Follow #1127 for progress.