Right. Fox News probably made a spelling error in the URL first time they posted it. In between you copying it the first time and trying to repost it they noticed and fixed the error. So then you navigated back to the site, copied and pasted it again and got the correct URL. It happens sometimes.
What absolutely definitely does not happen is Google, Apple or Microsoft inserting spelling errors into links you copy onto your clipboard to prevent you from being able to post Fox News stories to Facebook. That's just crazy talk.
(BTW, if you feel this outraged, oppressed and discriminated against by something that's not even happening, imagine how black people might feel. Food for thought.)