Wistia-hosted video not displaying via video embed
Normally I've been able to embed Wistia-hosted videos into Storyline using iframe embed code such as that shown below. However now it's not displaying in the Articulate slide. Instead, after inserting the embed code I'm getting a web-page error that reads "Navigation to the web page was cancelled." And when I publish the html output shows a blank page.
I've used embed code to Wistia-hosted videos in Storyline in the past with no problem. What gives?
Sample embed code.
<iframe src="//fast.wistia.net/embed/iframe/xv3elj03qr" allowtransparency="true" frameborder="0" scrolling="no" class="wistia_embed" name="wistia_embed" allowfullscreen mozallowfullscreen webkitallowfullscreen oallowfullscreen msallowfullscreen width="480" height="270"></iframe>