This content cannot be displayed in a frame. To help protect the security of information you enter into this website, the publisher of this content does not allow it to be displayed in a frame.
Why this appears:
Padlet displays content on an iframe so that users don't have to leave a padlet to preview an attachment. However, some site owners prevent their content form loading on an iframe, causing the preview to fail. :(
What you can do:
You can have the option to post a link to the content so you can click on it and go to the corresponding website. You can paste the text of the link on the post description text and then press Enter, this will turn the address into a clickable link.