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L Haney
Front End Web Development Techdegree Student 10,263 PointsWhat is the purpose of a "prefix" in an html file? For example... <html lang="en-US" prefix="og: http://ogp.me/ns#">
I was inspecting a random website (chefsavvy.com) and noticed at the top of the HTML file, it had a "prefix" attribute. What is the purpose of a "prefix" in an HTML file?
2 Answers
Jason Anders
Treehouse Moderator 145,860 PointsHi L Haney
This is used to implement the Open Graph Protocol. I haven't done much research on this, but here are a couple resources with some explanations. There is one on Quora and one from stackoverflow that I found.
It might also be of interest to point out that the web page you inspected (chefsavvy.com) is a site built with WordPress, so the template used for the site obviously can implement the OGP, thus it would need to have the prefix as part of the template.
It looks like an interesting protocol to read up on, and I wonder how many developers utilize it on their own, outside of WordPress Development?
:)
Developer PM
Courses Plus Student 134 PointsVery unsure I believe is use for open-graphs here is the website with a full explanation http://ogp.me/