Static Google Map Image not loading markers in PDF version

Hello! I'm stumped by this one, so I thought I'd ask the module experts.

I've created a views page that displays a list of nodes that a user has flagged. Each node has a location, and I've created an attachment that I use in conjunction with a custom tpl.php file to build a Static Google Map image. When I view the page, the Static Google Map image loads with markers as expected; when I email the page using this module, the image has markers as expected; when I view the page as a PDF, the markers do not load, but the map itself does.

The tpl.php file I'm using is:

<p><img src="http://maps.googleapis.com/maps/api/staticmap?center=39.859945414941905,-84.9957275390625&zoom=11&size=640x640&scale=2&maptype=roadmap<?php foreach ($rows as $id => $row): ?><?php print trim($row,"\r\n "); ?><?php endforeach; ?>&sensor=false" /></p>

It's seems that the PDF version doesn't process my views rows. To test that, I changed the template to just the URL, without loading the image, and it was processing the rows just fine, and the URL was accurate. So I was hoping for help determining if this is just a problem with my syntax in building the img tag, or if it's a bug with this module.

Thanks!

P.S. An example of the URL I'm building is: http://maps.googleapis.com/maps/api/staticmap?center=39.859945414941905,.... This is based on the example Google provides here: https://developers.google.com/maps/documentation/staticmaps/#quick_example