TypeError: string.charCodeAt is not a function

[BerryOsterlund]

Hi,

I'm setting up a new Backstage server and I would really like to use the ldap-authentication plugin. But I'm getting an error when I try to login. This is the body I get

"error": {
"name": "LdapAuthenticationError",
"message": "TypeError: string.charCodeAt is not a function",
"stack": "LdapAuthenticationError: TypeError: string.charCodeAt is not a function\n at authenticateWithAdmin (/home/xxx/mdlh/node_modules/ldap-authentication/index.js:179:11)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async authenticate (/home/xxx/mdlh/node_modules/ldap-authentication/index.js:388:12)\n at async ProviderLdapAuthProvider.defaultLDAPAuthentication (/home/xxx/mdlh/node_modules/@immobiliarelabs/backstage-plugin-ldap-auth-backend/src/ldap.ts:91:22)\n at async ProviderLdapAuthProvider.refresh (/home/xxx/mdlh/node_modules/@immobiliarelabs/backstage-plugin-ldap-auth-backend/src/provider.ts:89:33)"
},
"request": {
"method": "POST",
"url": "/ldap/refresh"
},

Any idea about what could be wrong here?