Invalid Host header

Is this a bug report?

Yes

Environment

1. node -v: v8.4.0
2. npm -v: 5.4.2
3. npm ls react-scripts (if you haven’t ejected): react-scripts@1.0.13

Then, specify:

1. Operating system: Ubuntu 14.04 server
2. Browser and version (if relevant): Chrome latest

Steps to Reproduce

(Write your steps here:)

1. create-react-app client
2. add “proxy”: “http://localhost:3001” to package.json
3. npm start
4. goto react url:port
5. webpage reads “Invalid Host header”

Expected Behavior

React Test page loads

webpage does load with proxy setting removed.

Actual Behavior

webpage reads “Invalid Host header”

http://scotts.webhop.net:3000/

[godmar]

PS: I found the issue. I had an entry

127.0.0.1  my.fqdn localhost

in my /etc/hosts (Ubuntu 16.04 standard installation). This resulted in HOST being looked up as 127.0.0.1 and bound accordingly.

For those finding this article, note that the documentation says that there’s no security by default, the more strict checks kick in only if you specify a proxy.

[JeffWScott]

Sorry Joe, Thanks for the quick response!

That did not fix it, I got some error after I set the host about not finding a port for the proxy or something. I had to resort to disabling the check as I couldn’t get hung up on this at the moment. Close this and I’ll open an issue when I get back to it. Sorry,