Any idea why my website is looking up a different domain while theme options are loading?

I found this in the ‘view-source’ of the theme options page, but I have no idea where it is pulling this from.  It seems to cause out page to load slowly. Any help where I should look would be appreciated. Our main domain is https://domain.com/

<input type="hidden" class="dh-opt-value" name="dh_theme_woow[body-bg][background-image]" id="body-bg_background_image" value="http://dev.domain.com/wp-content/themes/woow/assets/images/bg-body.png" /><input type="button" class="button button-primary" id="body-bg_background_image_upload" value="Select Image" /> <input type="button" class="button" id="body-bg_background_image_clear" value="Clear Image"  />