facebookincubator / meta-code-verify

Code Verify is an open source web browser extension that confirms that your Facebook, Messenger, Instagram, and WhatsApp Web code hasn’t been tampered with or altered, and that the Web experience you’re getting is the same as everyone else’s.
MIT License
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Code Verify

GitHub license Build status Chrome Edge Firefox Safari

Code Verify is an extension for verifying the integrity of a web page.

The idea is you can publish what JavaScript should appear on your site into a "manifest". The manifest consists of the hashes of all the JavaScript files in a given release. This browser extension can consume the manifest and verify that only that code executes, or else display a warning to the user.

Installation

You can install Code Verify from the extension store of Chrome, Firefox, Edge, or Safari.

Code of Conduct

Meta has adopted a Code of Conduct that we expect project participants to adhere to. Please read the full text so that you can understand what actions will and will not be tolerated.

License

Code Verify is MIT licensed.