code_challenge is empty

[rgunczer]

During Login Redirect the generated url contains a code_challange query parameter with empty value.

https://auth.brucke.club/login?state=g6Fo2SBGaHVTN196OGlVdFltNDVLQTZZRzFHT1Q1RTF1elBZZKN0aWTZIDVFbmJadWxiOHBNdDhCSkRxOHlCT2RLSGk5MWRDdTlzo2NpZNkgd0xTSVA0N3dNMzl3S2REbU9qNlpiNWVTRXczSlZoVnA&client=wLSIP47wM39wKdDmOj6Zb5eSEw3JVhVp&protocol=oauth2&scope=openid%20profile%20email&response_type=code&response_mode=query&nonce=.FS1wxtuxKVMDZ0S8f3~aZN3Hka48tP3V0qjoKYJjU3&redirect_uri=http%3A%2F%2Flocalhost%3A3000%2F&code_challenge=&code_challenge_method=S256&auth0Client=eyJuYW1lIjoiYXV0aDAtc3BhLWpzIiwidmVyc2lvbiI6IjEuMi4zIn0%3D

File: Auth0Client.ts
Line: 207

const code_challenge = bufferToBase64UrlEncoded(code_challengeBuffer);

After looking a bit closer. This line

auth0-spa-js/src/Auth0Client.ts

Line 203 in 32690bb

const code_challengeBuffer = await sha256(code_verifier);

const code_challengeBuffer = await sha256(code_verifier);
Fills the code_challengeBuffer however that value is lost in the next line:
const code_challenge = bufferToBase64UrlEncoded(code_challengeBuffer);

Going into bufferToBase64UrlEncoded function in this line

auth0-spa-js/src/utils.ts

Line 134 in 32690bb

const ie11SafeInput = new Uint8Array(Array.from(input));

the content is lost.

Hope this helps.

[benprime]

Having the same problem.

[benprime]

@rgunczer I was able to get it to send the code challenge by rolling the library version back to 1.0.1
npm install --save @auth0/[email protected]

[rgunczer]

@benprime Thanks, it woks with the older version and waiting for your fix to be merged.