Why does this “Slow network detected…” log appear in Chrome?

Question

I noticed this info log began to appear in Google Chrome Dev (Version 55.0.2883.18 dev) and I can\'t imagine why.

Slow network is detecte

Answer 1

1. No, this doesn't mean network is slow.
2. No, this is not only false warning.

I have this problem on angular web applications after replace link https://fonts.googleapis.com/icon?family=Material+Icons in index.html to integrated version (npm install .... material-icons...). This works, but sometimes web application show that warning.

When warning is shown icons are not rendered for approximately 1 second, so user see badly rendered icons.

I don't have solution yet.