Honoring Chrome's Network Overrides

[olostan]

There is a new feature on Google Chrome - "Network Overrides" that allows to override resources from local files.

Currently LightHouse ignore network overrides, however it would be extremely useful when optimising production web site.

[vinamratasingal-zz]

Thanks for the suggestion olostan! We'll prioritize this feature request and get back to you :)

[paulirish]

This would be totally awesome, but it looks to be a large effort. We'll work towards this one.

[olostan]

Meanwhile, as workaround, I've created small tool that behaive like "network overrides" but is "lighthouse-friendly": https://github.com/olostan/overproxy
And here is a small post how to use that: https://medium.com/@olostan/overriding-production-websites-resources-with-local-ones-f3973131ec88

Ofcourse, waiting for Lighthouse nativly support overrides :)

[brendankenny]

deduping into #5423 as it captures more context and has a significantly more urgent priority somehow