Attention
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Base ViewHelper <f:base>
Deprecated since version TYPO3 v11.5
The <f: ViewHelper is not suitable in almost all use cases
and has been deprecated: In most cases the Page takes care of the
main <head> markup, directly, or indirectly via TypoScript config..
ViewHelper which creates a <base href="..."></ tag.
The Base URI is taken from the current request.
Migration
If the ViewHelper is still needed, copy
\TYPO3\ to the consuming extension,
giving the ViewHelper a happy life in an extension specific namespace.
Examples
Example:
<f:base />
Output:
<base href="http://yourdomain.tld/" />
Depending on your domain.
Source code
Go to the source code of this ViewHelper: BaseViewHelper.php (GitHub).
Note
<f: has no arguments.