Note the accidental top bar:

Is this a misplaced tag? Also can see this when any doc page is loading.
I would like to work on this. This is my first contribution to react, so help is welcome. :)
@karthikchintapalli
Cool! You can follow these instructions to get docs running locally:
https://github.com/facebook/react/blob/master/docs/README.md
Then you'll need to diagnose where the issue is coming from.
@gaearon Thank you! Will get back in case of more questions.
@gaearon Ok, I think I get the issue. In the markdown, The first few words of the content, "Create React App" are a link. So, when the html file is generated, the <meta property="og:description" content="" /> tag's content property has <a> tags within it. But, it's only supposed to take a string. This is happening to all blog posts with a link in the first few lines, because they get included in the description.

@gaearon This is a fix I can think of. In docs/_layouts/default.html -
{% if page.excerpt %}
{% assign type = 'article' %}
{% assign sectionTitle = 'React Blog' %}
{% assign description = page.excerpt | remove: '<p>' | remove: '</p>' %}
To
{% if page.excerpt %}
{% assign type = 'article' %}
{% assign sectionTitle = 'React Blog' %}
{% assign description = page.excerpt | strip_html %}
This makes sense! Wanna send a PR?
Just sent a PR with the same changes :)
Most helpful comment
Just sent a PR with the same changes :)