Don't let CORS checks stop your web client!: How to disable google chrome security features in order to disable CORS checks.

Have you ever wanted to hit an api from a locally running client, except you kept running into CORS errors? Here's how to disable the CORS checks entirely on google chrome on a windows operating system to bypass that. Use at your own risk, as this does disable some browser security and isn't recommended for daily browsing.

# Instructions for disabling CORS checks on Windows

Create or copy a google chrome shortcut on the desktop.
Right click on the shortcut and go to properties.
Modify the launch line adding these arguments to the command: --disable-web-security --disable-features=IsolateOrigins,site-per-process --user-data-dir="C://ChromeDev" The full command should look like "C:\ProgramFiles\Google\Chrome\Application\chrome.exe" --disable-web-security --disable-features=IsolateOrigins,site-per-process --user-data-dir="C://ChromeDev".
Use the shortcut to launch google chrome.

That's it! Similar instructions should work on other operating systems as well with the same google chrome launch arguments.