TYPO3 Fluid: Condition, if a link target is an active page?

I have a TYPO3 Fluid code like this:

<f:if condition="{data.header_link.url}">
    <f:then>
        <f:link.typolink parameter="{data.header_link}">My Link</f:link.typolink> 
    </f:then>
    <f:else>
        Sorry, no link
    </f:else>
 </f:if>

Problem: When a link is set, but the target page is disabled, the condition is true and I get "My Link" (just text without link) as output.
Is there a condition to address that issue?

TYPO3 13.4.15

Thanks!

You can check, if the f.uri.typolink viewhelper creates a path.

This should do the job:

<f:if condition="{f:uri.typolink(parameter: data.header_link)}">
  <f:then>
    <f:link.typolink parameter="{data.header_link}">My Link</f:link.typolink>
  </f:then>
  <f:else>
    Sorry, no link
  </f:else>
</f:if>