Include via JS
<div id="includeFooter“ csi:src="inc/footer.html"></div>
The included html file contains exactly the code snippet which should be included, for example:
<div class="footer"> <div class="content-element"> All images: © Florian Franke, <a href="http://www.franke-photography.com">http://www.franke-photography.com</a></div> <!-- Div content-element --></div> <!-- Div Footer -->
Client-side including is not very search engine friendly, but it’s the only solution that works in iOS apps.
If you have another idea, please comment below!