Usage¶

To enable canonical link for a file:

Edit the file’s metadata, in TYPO3 backend
Set a page or record, on which this file is located at
After saving metadata, the canonical link get parsed and stored to database

Now, when requesting the file in Frontend, will add additional “Link” HTTP header:

Additional HTTP response header "link", shown in browser's dev tools

Auto Canonical Link¶

When the this option is enabled, the file_canonical extension creates the canonical link automatically from HTTP referer of file requests. You can see the generated link in info module and file meta data.