What is `edit` attr in the meta tag

Question

I looked at the jsfiddle code and saw the following lines:

<meta name="description" edit="mootools shell, easy test you snippets before implementing"> <meta name="keywords" edit="mootools,javascript,javascript framework,shell,test"> <meta name="robots" edit="all"> 

I have never seen an edit attic before. What does it do? I could not find information about w3.org or google

Answer 1

I would argue that this is simply a mistake on their part, and the attribute “edit” should be “content”. Maybe you should send them a note and let them know.

Update: I just sent Peter a note letting him do this. I am updating my answer with his answer (if any).

Answer 2

The edit attribute is not valid html :

  Line 4, Column 33: there is no attribute "edit" <meta name="description" edit="mootools shell, easy test you snippets before … ✉ 

So this means that it is either used by jsfiddle to pass values ​​to their js, or by some web crawlers that I don't know about.

I checked the Google crawler, but it does not mention any such attributes.