Bearer authorization token is being trucanted.

[exhaler]

Repro steps

Provide the steps required to reproduce the problem:

Github repo: https://github.com/exhaler/DebugSample

1. Create a function app in VS Code
2. Log this request.headers.get("authorization");
3. Push the changes to the static web app and wait until it deploys.
4. Check the logs to see that authorization is truncated to 365 chars.
5. This only happens live and never while locally testing.

Expected behavior

To get the full authorization string being sent Bearer eyJhbGciOiJSUzI1NiIsImtpZ....

Actual behavior

Authorization header is being truncated to 365 characters, full sample:

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE3MTQwMDExNjgsImV4cCI6MTcxNDAwMTQ2OCwiaWF0IjoxNzE0MDAxMTY4LCJpc3MiOiJodHRwczovLzI5NjUwNWM5LTU1OTMtNDE0MC1iNDNkLWE0NmQyMWUyMjNiZS5zY20uYXp1cmV3ZWJzaXRlcy5uZXQiLCJhdWQiOiJodHRwczovLzI5NjUwNWM5LTU1OTMtNDE0MC1iNDNkLWE0NmQyMWUyMjNiZS5henVyZXdlYnNpdGVzLm5ldC9henVyZWZ1bmN0aW9ucyJ9.PudR8AmjfUDRspT_x1_yCWS8e22l1PJ3mEIgYUOIuBY

Known workarounds

Sending the token using a custom header, example X-Auth-Token, works fine and is not truncated.

Related information

• Programming language

  Windows 10
  Azure Functions Core Tools
  Core Tools Version:       4.0.5611 Commit hash: N/A +591b8aec842e333a87ea9e23ba390bb5effe0655 (64-bit)
  Function Runtime Version: 4.31.1.22191
  Node v18.20.2
  typescript v4

[ejizba]

Hi @exhaler this appears to be specific to static web apps. I tried with a standalone function app and wasn't seeing any problems. I believe this is actually related to https://github.com/Azure/static-web-apps/issues/34

[ejizba]

Closing in favor of static web apps bug