This is added to content by the addition of classes and the h-entry class, for example, denotes an individual post.
Previously I had the h-entry class added to the <entry> pseudo element which tested okay at indiewebifyme.me and everything worked fine.
Last night, for no real reason, I decided to re-run the various indiewebify tests and found that my h-entry details were no longer being picked up.
It seems that the class detection may have altered and that h-entry no longer works on the <entry> element. Moving it to the <article> container made it work again.
The theme, however, already assigns various classes to <article> based on factors like the type of post using the post_class() function, so how to add h-entry without breaking anything?
Fortunately, an additional class can be added using the same function by simply passing it as a parameter, like so: post_class( 'h-entry' )
Problem solved.
@colinwalker that is a weird change! You were right to be concerned.
@nitinkhanna It just looked like some kind of alert or notification and I couldn't work out why. Not the best design choice if I'm honest.
@colinwalker true, true!