424

Failed Dependency

Official

There is no indispensable dependence

General explanation of the 424 status code

The HTTP status code 424 Failed Dependency indicates that a request could not be executed because it depends on another action or resource that previously failed. This error typically occurs in systems where multiple processes or steps must work together. For example, a server might fail to execute a request because a previous database query or connection to an external service was unsuccessful. This means that the main request can only work if all required dependencies are fulfilled correctly. This makes it clear to the user that the desired action cannot currently be completed because there is a problem in an upstream process. The solution lies in rectifying the underlying error to which the status code refers.

Specification of the HTTP status code 424

The 424 Failed Dependency status code means that the method could not be performed on the resource because the requested action depended on another action and that action failed. For example, if a command in a PROPPATCH method fails, then, at minimum, the rest of the commands will also fail with 424 Failed Dependency.

Source / Quote by: The 424 Failed Dependency HTTP Status Code is specified by section 11.4 of RFC4918.

HTTP-Protocol

HTTP/1.1 (1999)

HTTP/2 (2022)

HTTP/3 (2022)

How to throw a 424 statuscode with PHP?

To throw the HTTP status code 424 on a web page, the PHP function http_response_code can be used. The syntax is as follows: http_response_code(424) (PHP 5 >= 5.4.0, PHP 7, PHP 8)

Test the 424 HTTP status code

http-statuscode.com (Test Status code 424)

httpstat.us (Test Status code 424)

In order to be able to display the HTTP status code (in this case 424 Failed Dependency) and other information on the client side, the development console must be opened with F12. Afterwards you have to navigate to the tab "Network". Now you can open the page, in the network tab you should see the web page (example index.php). This must be selected and then the Herder section must be selected. Here the user will see the following result:

Overview
URL: https://http-statuscode.com/errorCodeExample.php?code=424
Status: 424 Failed Dependency
Those: Network
IP address: XX.XX.XX.XX

How to create a custom error page for the 424 status code

Creating your own 424 Failed Dependency error page is relatively easy with the web server "Apache" as well as with the web server "NGINX".

Apache Webserver

The web server "Apache" is one of the most popular web servers on the Internet. To create an own 424 Failed Dependency error page in "Apache", the following change must be made in the following file.

File: .htaccess

ErrorDocument 424 /errors/424.html

NGINX Webserver

Similar to the web server "Apache", "NGINX" is also widely used on the Internet. To create your own 424 Failed Dependency error page in "NGINX", the following change must be made in the following file.

File: sites-enabled/default

error_page 424 /424.html;
location = /424.html {
root /usr/share/nginx/html;
internal;
}

Browser compatibility of the 424 status code

Chrome	no data
Edge	no data
Firefox	no data
Opera	no data
Safari	no data
Chrome Android	no data
Firefox for Android	no data
Opera Android	no data
Safari on iOS	no data
Internet	no data
WebView Android	no data