Fix escaping bug (resolves VUFIND-1428).

themes/bootstrap3/templates/RecordDriver/DefaultRecord/cover.phtml

@@ -9,7 +9,7 @@
   <div class="ajaxcover">
     <div class="spinner"><i class="fa fa-spinner fa-spin"></i> <?=$this->translate('Loading')?>...</div>
     <div class="cover-container">
-      <img <?php if ($linkPreview): ?>data-linkpreview="true" <?php endif; ?>data-recordsource="<?=$driver->getSourceIdentifier()?>" data-recordid="<?=$driver->getUniqueID()?>" data-coversize="<?=$size?>" class="recordcover ajax" alt="<?=$this->escapeHtmlAttr($alt); ?>" />
+      <img <?php if ($linkPreview): ?>data-linkpreview="true" <?php endif; ?>data-recordsource="<?=$this->escapeHtmlAttr($driver->getSourceIdentifier())?>" data-recordid="<?=$this->escapeHtmlAttr($driver->getUniqueID())?>" data-coversize="<?=$this->escapeHtmlAttr($size)?>" class="recordcover ajax" alt="<?=$this->escapeHtmlAttr($alt); ?>" />
     </div>
   </div>
 <?php endif; ?>

themes/bootstrap3/templates/RecordDriver/EDS/cover.phtml

@@ -13,7 +13,7 @@
   <div class="ajaxcover">
     <div class="spinner"><i class="fa fa-spinner fa-spin"></i> <?=$this->translate('Loading')?>...</div>
     <div class="cover-container">
-      <img <?php if ($linkPreview): ?>data-linkpreview="true" <?php endif; ?>data-recordsource="<?=$driver->getSourceIdentifier()?>" data-recordid="<?=$driver->getUniqueID()?>" data-coversize="<?=$size?>" class="recordcover ajax" alt="<?=$this->escapeHtmlAttr($alt); ?>" />
+      <img <?php if ($linkPreview): ?>data-linkpreview="true" <?php endif; ?>data-recordsource="<?=$this->escapeHtmlAttr($driver->getSourceIdentifier())?>" data-recordid="<?=$this->escapeHtmlAttr($driver->getUniqueID())?>" data-coversize="<?=$this->escapeHtmlAttr($size)?>" class="recordcover ajax" alt="<?=$this->escapeHtmlAttr($alt); ?>" />
     </div>
   </div>
 <?php endif; ?>