Can i put both og:image:secure_url and og:image on page for linkedin and facebook

Question

my website is currently running on HTTPS://. i am leveraging add this for social functionality.

Problem: i face following problems on linkedin sharing.

a) Most of time only half of the image comes b) Some time image does not appear.

Questions:

1) Can i put both og:image:secure_url and og:image on page for linkedin and facebook. if Yes, what should be the order. Example:

<meta property="og:image" content="http://example.com/ogp.jpg" />
<meta property="og:image:secure_url" content="https://secure.example.com/ogp.jpg" />

2) Do following are mandatory for linked in and facebook to show images properly.

<meta property="og:image:type" content="image/jpeg" />
<meta property="og:image:width" content="400" />
<meta property="og:image:height" content="300" />

any solution, but it should work on both linkedin and facebook.

Answer 1

1) Yes, and based on http://ogp.me/#structured, this will tell the crawling service that "the webpage requires HTTPS".

2) These are not required, as FB and LinkedIn will form the correct size regardless. Remember that LinkedIn explicitly has minimum requirements whereas FB does not.