Document what to do when webhook deliveries return a 3XX status code

[davidtranjs]

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• In the webhooks documentation, explain what to do if the status code returned is a redirection (3XX) status code.
• In the webhooks deliveries list, add a tooltip/link to this documentation if the status code is a 3XX status code

Original issue

Description

I have an API that host at Vercel and then I config Polar's webhook with it

URL: https://{DOMAIN}/api/webhook-polar

Then all webhook requests receive a 307 from my API.

Then I changed the URL to https://www.{DOMAIN}/api/webhook-polar and all the webhook requests now receive 200 from my API

The root cause is because Vercel has a redirect from non-www to www, so I think this should be automatically handled by Polar to prevent this case.

Current Behavior

Polar dashboard show all webhook request call return 307 and count as failed request

Expected Behavior

Webhook's request should receive 200 from my API

Screenshots

N/A

Environment:

• Operating System: macOS
• Browser (if applicable): Chrome