Some dev servers like next.js use Gzip which breaks our content injection so we avoid getting gzipped response when we need to do the shim injection.
things to test: - [x] allow real URL to open in new window - [x] packaging in electron? - [ ] does it work on windows? - [x] make sure it works with older apps - [x] what about cache / reuse? - maybe use a bigger range of ports??