Using Create-React-App with Apache VirtualHost - reactjs

Question

I am trying to develop a project for a company. This company has an API that only allows requests from two sources: Their own host, and xyz.localhost.
At first, I developed the project with jQuery only (loaded in via CDN). With an Apache VirtualHost setup, this worked -- I could access the API.
Now, I want to refactor the project and use React with it. I used create-react-app to create a react directory.
The problem is: I can get create-react-app to use xyz.localhost, but I am still getting the CORS error message in Chrome:
Access to fetch at 'http://api.thatcompany.com/search?search=a'
from origin 'http://xyz.localhost:3000' has been blocked by CORS policy
Has anybody any ideas how to make it work?
Thank you in advance.
/private/etc/apache2/httpd.conf:
# Virtual hosts
#Include /private/etc/apache2/extra/httpd-vhosts.conf
Include /private/etc/apache2/vhosts/*.conf
/private/etc/hosts:
127.0.0.1 xyz.localhost
255.255.255.255 broadcasthost
::1 xyz.localhost
/private/etc/apache2/vhosts/xyz.localhost.conf:
<VirtualHost *:80>
DocumentRoot "/Users/MYUSERNAME/dev_projects/MY-REACT-APP/public"
ServerName xyz.localhost
<Directory "/Users/MYUSERNAME/dev_projects/MY-REACT-APP/public">
AllowOverride All
Require all granted
</Directory>
<filesMatch "\.(html|htm|js|css)$">
FileETag None
<ifModule mod_headers.c>
Header unset ETag
Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate"
Header set Pragma "no-cache"
Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
</ifModule>
</filesMatch>
</VirtualHost>
My create-react-app start script:
"scripts": { "start": "HOST=xyz.localhost react-scripts start" }

Answer 1

I found a workaround.
I simply pointed the VirtualHost to the build folder of Create React App, this worked and served me the static files.
Editing the code was pretty tiresome, as I had to run npm run Build after every update.
Luckily, I found the npm watch module. With that, create react App would rebuild on every save. I still have to wait a second between save and refreshing the browser, and it’s absolutely not comparable to using create react app on its own, but it was a good enough solution!