My users were reporting issues with opening/downloading attachments as well, especially on mobile devices. I ended up replacing link to function
getfile with simple link to the file itself. No download issues reported since.
In file
Code:
/components/com_jem/common/views/tmpl/default_attachments.php
Replace these 2 lines
Code:
$attribs = array('class'=>'file-name');
echo JHtml::_('link','index.php?option=com_jem&task=getfile&format=raw&file='.$file->id,$image,$attribs);
With these 2 lines
Code:
$attribs = array('class'=>'file-name','target'=>'_blank');
echo JHtml::_('link',str_replace(JPATH_SITE, "", JEMAttachment::getAttachmentPath($file->id)),$image,$attribs);
