W3C validator error : Attribute component not allowed on element ....

[asma_90]

I keep getting this error (more than 25 errors ) when I validate my theme (which is build on the persona theme), will it be an issue if I delete the attribute "component" from my ul, li, h2.....
examples of the errors I get:
Attribute component not allowed on element li at this point.
Attribute component not allowed on element h2 at this point.
Attribute component not allowed on element i at this point.

[PitaJ]

There's an issue on GitHub for this

Replace custom attributes with data attributes · Issue #5435 · NodeBB/NodeBB

Follow-up of #5432: There are several div tags with "widget-area" attributes found in several themes... As pointed out by @psychobunny, changing this into data-widget-area immediately would break a lot of themes. The same applies also to...

GitHub (github.com)

[asma_90]

thanks for the reply. I will wait for the major release then