AuthProvider.js breaks on line 130 when Authentication provider is Google

Please provide us with the following information:

This issue is for a: (mark with an `x`)

- [ x] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Minimal steps to reproduce

Add Google as an external authentication provider, add it to the user flow and use it to authenticate

Any log messages given by the failure

\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\auth\AuthProvider.js:130 codeVerifier: req.session.pkceCodes.verifier, // PKCE Code Verifier ^

TypeError: Cannot read properties of undefined (reading 'verifier') at AuthProvider.handleRedirect (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\auth\AuthProvider.js:130:49) at exports.handleRedirect (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\controller\authController.js:8:25) at Layer.handle [as handle_request] (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\layer.js:95:5) at next (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\route.js:144:13) at Route.dispatch (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\route.js:114:3) at Layer.handle [as handle_request] (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\layer.js:95:5) at C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\index.js:284:15 at Function.process_params (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\index.js:346:12) at next (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\index.js:280:10) at Function.handle (C:\GitHub\ms-identity-ciam-javascript-tutorial\2-Authorization\4-call-api-express\App\node_modules\express\lib\router\index.js:175:3)

Expected/desired behavior

Not to crash

OS and Version?

Windows 7, 8 or 10. Linux (which distribution). macOS (Yosemite? El Capitan? Sierra?)

Versions

Windows 11

Mention any other details that might be useful

I changed the line to "codeVerifier: req.session.pkceCodes.verifier || 'Not verified', // PKCE Code Verifier" just to be able to continue with Entra External ID testing.

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Azure-Samples / ms-identity-ciam-javascript-tutorial