Using the Power BI Authentication API returns accessToken null

I'm developing a custom visual for Power BI, and I'm trying to use the Authentication API (https://learn.microsoft.com/en-us/power-bi/developer/visuals/authentication-api). I wrote this function:

  const authenticate = () => {
    props.host.acquireAADTokenService.acquireAADTokenstatus().then((acquireTokenStatus) => {
      console.log('allowed?', acquireTokenStatus)
      if (acquireTokenStatus === powerbi.PrivilegeStatus.Allowed) {
        props.host.acquireAADTokenService
          .acquireAADToken()
          .then((acquireAADTokenResult: AcquireAADTokenResult) => {
            console.log('access token', acquireAADTokenResult)
            if (acquireAADTokenResult.accessToken) {
              getDatasetInfo(acquireAADTokenResult.accessToken, props.datasetId).then((createdDataset) =>
                setDataset(createdDataset),
              )
            }
          })
      }
    })
  }

It logs `allowed? 0`, meaning the privilege is allowed in the project, and then the accessToken is always null. I enabled the option of obtaining Entra ID tokens (https://learn.microsoft.com/en-us/fabric/admin/organizational-visuals#obtain-microsoft-entra-access-token). I also added the privileges to the project, with the url I configured in my Azure application

{
  "privileges": [
    {
      "name": "WebAccess",
      "essential": true,
      "parameters": ["*"]
    },
    {
      "name": "ExportContent",
      "essential": true
    },
    {
      "name": "AADAuthentication",
      "parameters": ["https://mywebsite.com"]
    }
  ],

I also added permissions in the Azure application and I tried adding localhost as a URI redirect.

From what I understood this should be working. What's missing?