Tried to do that using the the Pinterest Widget Builder here: https://goo.gl/wLPVov, but the embed code has a custom anchor tag "<a>" that was deleted by Blackboard. We have the Global Safe HTML Filter turned off.
Pinterest embed code looks like this:
Copy and paste this code into your page where you want your add-on to appear:
Don't forget to include pinit.js once per page, right before the closing </BODY> tag.
The first code snippet is the one gets deleted by Blackboard.
Would appreciate any insights.