Localhost not working in Chrome, 127.0.0.1 does work

问题

I'm trying to run a local node server, but for whatever reason localhost:3000 does not work. The error page states This webpage is not available ERR_CONNECTION_CLOSED However, 127.0.0.1:3000 does work. I have tried making changes to my hosts file, but to no avail. Does anyone have any idea what's causing the problem?

Chrome version is 46.0.2490.80 m

回答1:

Here are the steps I took to make this work correctly:

1. Edited my hosts file so 127.0.0.1 localhost. was present, and saved the file
2. Cleared my Chrome cache, specifically cookies and cached files
3. Cleared host cache in chrome://net-internals/#dns
4. Restarted chrome

Alternatively, this also works:

1. Navigate to chrome://net-internals/#hsts
2. Under "Delete domain", type localhost and delete

Unbeknownst to me, my project had an HSTS middleware that set an HSTS cookie

回答2:

For me (I had HTTP and HTTPs dev server on same port)

• Chrome Dev tools F12
• Application tab
• Clear storage sub-tab
• "Clear site data" button

回答3:

if you're using a proxy there's a checkbox to bypass it for local addresses.

回答4:

I solved my problem by:

• opening the developer console F12
• Going to network tab
• Check Disable Cache
• Browse locahost

来源：https://stackoverflow.com/questions/33524826/localhost-not-working-in-chrome-127-0-0-1-does-work