Headers must not be the last object on the page

Headers must not be the last object on the page

[Brian Wedde]

I'm getting headers as the last item on a page. Following content appears on 
the next page. I would like to have headers not be separated from their 
content by a page break.

Is there a way to say "if a header is the last thing on the page, place it on 
the next page instead"?

I am aware of the "before={\testpage[n]\blank}" trick, but this only applies 
when you need a specific amount of lines. Because the following content may be 
a figure, float, table, or other large object, the space required will vary. I 
just want the header to know that it must not be the last object on the page.

Is this possible?

Thank you very much for your help.
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