TYPO3 Core

In \TYPO3\CMS\Core\Utility\HttpUtility there are various HTTP status-headers defined as class-constants. This includes those for HTTP-redirects. I'm missing the "HTTP/1.1 308 Permanent Redirect" header here. Therefore I'll prepare a PR for TYPO3.CMS' master-branch to include this header as a class constant in the class mentioned above.

Research Information¶

The main difference to the well known “HTTP/1.1 301 Moved Permanently” header is, that 308 forces the client (aka Browser) to follow the redirect using the same protocol as the initial request. So for example with 308 a GET request must be followed with a GET request and a POST request must be followed with a POST request to the new location. With 301 status a POST request will be followed using a GET request to the new location.

The permanent redirect is defined here:

• https://tools.ietf.org/html/rfc7538#section-3

According to Mozilla's research (as well as my biased experience) it is supported by all browsers.

• https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/308

A compact and profound description of the HTTP redirect-related headers, can be found on Stackoverflow.

• https://stackoverflow.com/a/42138726

My Conclusion¶

Adding this header to the utility will not harm existing installations or anything at al.