Example 1
<f:section name="HeaderAssets">
<title>Super title from fluid</title>
</f:section>
Example 2
Global HeaderAssets.html
<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true">
<v:variable.set name="pageUid" value="{v:page.info(field: 'uid')}" />
<f:if condition="{pageUid} != 30">
<title>
{v:page.info(field: 'title')}
<f:if condition="{settings.titleEndSegment}">
— {settings.titleEndSegment}
</f:if>
</title>
</f:if>
Page id 30 with detail view of some plugin
<f:section name="HeaderAssets">
<title>{arguments.job.value.jobTitle}</title>
</f:section>