Does anyone ever work or still work with the liveReload via grunt ?

• I have some problem, i don't know why but the liveReload dont refresh th content changed automatically.

• I have grunt installed and it works fine i can clean, exec, etc but, when i enter: grunt watch he watch well the changes, exemple: if i change mycustom.css, he display :

File "pub/static/frontend/Package/theme/fr_FR/css/mycustom.css" changed. Completed in 0.001s at Wed Mar 21 2018 16:08:58 GMT+0100 (CET) - Waiting...

But he doesn't refresh the page,(when i refresh it manually, i see well my changes) is there a configuration to do in grunt or in the server ?

• I also wanted to mention that the liveReload browser extension is well installed but does not work, ie when I press on a logo, it shows me an error message:

Could not connect to LiveReload server. Please make sure that LiveReload 2.3 (or later) or another compatible server is running.