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Troubleshoot Snippets

Error 1201: Snippet tried to continue to origin multiple times

This error occurs when a Snippet attempts to call fetch(request) more than once.

Resolution

Ensure that your Snippet code only calls fetch(request) once. This method is used to send the modified request to the origin server, and it should be called only once per Snippet to avoid conflicts.

Error 1202: Snippets exceeded subrequests limit

This error occurs when the number of subrequests exceeds the limit for your Cloudflare plan.

Resolution

Review your Snippet to ensure your code is within the subrequest limits for your plan. Each subrequest counts against your limit, including any redirects within a subrequest chain.

Error 1203: Snippets exceeded CPU time limit

This error occurs when a Snippet exceeds the defined CPU time limit for Snippets.

Resolution

Review your Snippet to ensure your code is within the CPU time limit. If you need a higher CPU time limit, consider using Cloudflare Workers. Refer to When to use Snippets vs Workers for details.

Error 1204: Snippets exceeded memory limit

This error occurs when a Snippet exceeds the defined memory limit for Snippets.

Resolution

Review your Snippet to ensure your code is within the memory limit. If you need a higher memory limit, consider using Cloudflare Workers. Refer to When to use Snippets vs Workers for details.

Error 1205: Deployment in progress

A new Snippet was just deployed and is currently propagating across Cloudflare's global network. During this short window, requests may not be processed as expected.

Resolution

This is a temporary issue. Retry your request after a few seconds — the Snippet will be active once propagation completes.

Error 1206: Snippet threw exception

The Snippet encountered an unhandled JavaScript exception during execution. This may be caused by one of the following:

  • Runtime JavaScript errors in Snippet code
  • Unhandled promise rejections
  • Type errors or reference errors

Resolution

  • Review the Snippet code to identify where the exception might have occurred and fix any detected bugs.
  • Add proper error handling (try/catch blocks).

Snippets cannot be renamed

The name you define when creating a Snippet will be used as the Snippet ID and cannot be edited afterwards.

Resolution

To change the name of your Snippet, create a new Snippet and delete the old one.

Other runtime errors

Snippets share some error codes with Workers, namely errors in the 11xx range. For more information on these errors, refer to Errors and exceptions.