required property 'og:title' of type 'string' was not provided
facebook, facebook-opengraph
Solution
You are using https, but you do not have a valid SSL certificate. Replace https with http in your code and test with the http link instead.
Problem
When I debug my webpage in the facebook linter, it keeps showing the warning: "required property 'og:title' of type 'string' was not provided" I have read the suggestions on SO and have tried: no gzip compression re scrape on the fb debugger building new test page with only Facebook og meta tags but the warning is the same. The test page code is: ``` <!DOCTYPE html> <html prefix="og: http://ogp.me/ns#" > <head> <title>testing page</title> <meta property="og:title" content="testing page og title" /> <meta property="og:type" content="article" /> <meta property="og:url" content="https://www.skinvac.com/test.html" /> <meta property="og:image" content="https://www.skinvac.com/test-image.png" /> <meta property="og:description" content="testing page og description " /> <meta name= "keywords" content="test " /> <meta name= "description" content="test" /> </head> <body> <h1>test</h1> <img src="test-image.png"> </body> </html> ``` The debug results can be seen here facebook share debugger result There is a warning of: "The 'og:type' property is required, but not present." But the "og:title" property is in the header tags. How can I fix this please? Thank you