Thanks for clarifying that you misread, but please keep the text or at least enough contextual information so we know what the replies to you are talking about. Which link did you edit out? Because I missed it.
Per the text, the screenshot you are seeing is what happens when someone links to a jsfiddle using a url shortner but posts linking directly to jsfiddle are rejected.
>Twitter is rejecting posts with JSFiddle URL inside.
>If a URL shortener is used the unsafe page warning is displayed[1]
