Setting Up Content-Security-Policy

I get this warning in the console every time i compile my electron-app,
"Electron Security Warning (Insecure Content-Security-Policy) This renderer process has either no Content Security Policy set or a policy with "unsafe-eval" enabled. This exposes users of this app to unnecessary security risks."

I've tried to set-up Content Security by inserting the meta-tag into the header. But webpack generates the static index.html at run-time. So i'm not sure where or how to add content security policy.

Any help will be appreciated