[Tex/LaTex] Footnote on the wrong page

Question

I have a page that have only a single figure (consisting of many images) on it and its caption. I want to put a footnote on the same page. I used some suggestions mentioned at SO like this one which gives the following MWE:

\documentclass{article}
\usepackage[demo]{graphicx}

\begin{document}

\begin{figure}
   \centering
   \includegraphics{foo}  ...
   \caption[Caption for LOF]{Real caption\protect\footnotemark}
\end{figure}

\footnotetext{blah blah blah}

\end{document}

PROBLEM: The footnote comes on the previous page that does not have figure and contains only text.

Answer 1

The posted example does not relate to the problem as the footnote comes on the same page as the figure.

I would guess you have

\documentclass{article}


\begin{document}

\begin{figure}%[!ht]
   \centering
    \rule{1cm}{15cm}
   \caption[Caption for LOF]{Real caption\protect\footnotemark}
\end{figure}

\footnotetext{blah blah blah}

\end{document}

where the figure is on page 2 and the footnote on page 1.

If you uncomment [!ht] then it all comes on to one page.