If you stumbled upon this post, you most likely know what Facebook Istant Articles are and how to properly implement them in your WordPress blog. In the unlikely case you don’t, we strongly suggest to visit this page first, read the informative stuff, follow the Sign up link to enable the feature on your Facebook page, then install this WP plugin and configure it.
If you already did this and you ended up here, chances are that you’re facing a warning similar to the following one:
This post will not be submitted to Instant Articles because the transformation raised some warnings.
This post was transformed into an Instant Article with some warnings:
No rules defined for <div class=”shareaholic-canvas”> in the context of InstantArticle
The warning gets raised near the bottom of the Edit Post page within the WP-Admin interface, just like the screenshot below: