Exception status code

Plugin ID: kernel:exception_status_code

Available since: 2.1.0

Event that is dispatched when a routing exception 4xx or 5xx is found.

Provided tokens

Token	Description
[user]	The current user. Alias: current_user
[htmx]	Information about the current HTMX request.
[htmx:is_request]	Whether the current request was sent by HTMX ("1" or "0").
[htmx:boosted]	Whether the current request was boosted by HTMX ("1" or "0").
[htmx:history_restore]	Whether the current request is for HTMX history restoration ("1" or "0").
[htmx:target]	The identifier of the element the response is targeted at.
[htmx:trigger]	The identifier of the element that triggered the request. On Drupal 11 this is the element id, on Drupal 12 and later it is the CSS selector that htmx 4 sends. Prefer "trigger_name", which means the same thing on both.
[htmx:trigger_name]	The name attribute of the element that triggered the request, or empty if it has none. This has the same meaning on all supported Drupal versions.
[htmx:source]	The CSS selector of the element that triggered the request, for example button[name="first_item"]. Empty on Drupal 11, which does not send this information.
[htmx:request_type]	Whether the request targets a full page or a fragment: "full" or "partial". Empty on Drupal 11, which does not send this information.
[htmx:current_url]	The URL of the page the request was sent from.
[event]	The event.
[event:machine_name]	The machine name of the ECA event.
[session_user]	The user account that dispatched the event, regardless if ECA is processing models under a different account. This is only available if ECA is configured to always run under a specific account.

Fires when an HTTP exception with a 4xx or 5xx status code is encountered during routing. The [event:code] token provides the HTTP status code.

Useful for redirecting users on specific error codes (e.g., redirect to login on 403, custom page on 404), or sending notifications on server errors.