Error code search

This error indicates that an attempt was made to modify a restricted HTTP header. You are trying to modify an HTTP header that Request Header Transform Rules cannot change.

This error indicates that the header value is not valid. The added/modified header value is too long or it contains characters that are not allowed.

This error indicates a rendering issue. This error typically occurs when a Cloudflare Worker encounters a runtime JavaScript exception.

This error indicates that a Cloudflare Worker has exceeded its CPU time limit or memory limit. A Cloudflare Worker exceeds a CPU time limit. CPU time is the time spent executing code (for example, loops, parsing JSON, etc). Time spent on network requests (fetching, responding) does not count towards CPU time.

This error indicates that the email address you are trying to add is already taken in the system. This error can occur if an email has been added with some variation of the email you're trying to add. For example, [email protected] and [email protected] will be treated the same in our system.

This error indicates that access is denied because your IP address has been banned. A Cloudflare customer blocked traffic from your client or browser.

This error indicates that the number of requests queued on Cloudflare's edge exceeds the limit. There are too many requests queued on Cloudflare's edge that are awaiting process by your origin web server. This limit protects Cloudflare's systems.

Another resource has the same value as one of your parameters. This can happen in resources that must have some unique key (such as label names).

Refer to the message property to diagnose the error.

The formatting of a parameter is invalid. Review the endpoint documentation for more specific information.

A resource does not exist.

A parameter that was required was not specified. Review the documentation for the endpoint to see what parameters are required.

The parameters that were provided were invalid.

The claims payload provided to setCustomUserClaims() exceeds the maximum allowed size of 1000 bytes.

The provided email is already in use by an existing user. Each user must have a unique email.

The provided Firebase ID token is expired.

The Firebase ID token has been revoked.

The credential used to initialize the Admin SDK has insufficient permission to access the requested Authentication resource. Refer to Set up a Firebase project for documentation on how to generate a credential with appropriate permissions and use it to authenticate the Admin SDKs.

The Authentication server encountered an unexpected error while trying to process the request. The error message should contain the response from the Authentication server containing additional information. If the error persists, please report the problem to our Bug Report support channel.

An invalid argument was provided to an Authentication method. The error message should contain additional information.

The custom claim attributes provided to setCustomUserClaims() are invalid.

The continue URL must be a valid URL string.

The creation time must be a valid UTC date string.

The credential used to authenticate the Admin SDKs cannot be used to perform the desired action. Certain Authentication methods such as createCustomToken() and verifyIdToken() require the SDK to be initialized with a certificate credential as opposed to a refresh token or Application Default credential. See Initialize the SDK for documentation on how to authenticate the Admin SDKs with a certificate credential.

The provided value for the disabled user property is invalid. It must be a boolean.

The provided value for the displayName user property is invalid. It must be a non-empty string.

The provided dynamic link domain is not configured or authorized for the current project.

The provided value for the email user property is invalid. It must be a string email address.

The provided value for the emailVerified user property is invalid. It must be a boolean.

The hash algorithm must match one of the strings in the list of supported algorithms.

The hash block size must be a valid number.

The hash derived key length must be a valid number.

The hash key must a valid byte buffer.

The hash memory cost must be a valid number.

The hash parallelization must be a valid number.

The hash rounds must be a valid number.

The hashing algorithm salt separator field must be a valid byte buffer.

The provided ID token is not a valid Firebase ID token.

The last sign-in time must be a valid UTC date string.

Only exactly one OAuth responseType should be set to true.