I have this code:
<meta name="twitter:card" content="summary" />
<meta name="twitter:site" content="@myTwitterUser" />
<meta name="twitter:creator" content="@myTwitterUser" />
<meta name="twitter:title" content="My title" />
<meta name="twitter:description" content="This is my description" />
<meta name="twitter:image" content="http://www.this_is_my_domain.com/img/logo-a-366x366.png">
The image exists, its type is PNG and its size is 366x366. Then I check it in https://cards-dev.twitter.com/validator this tells me
*.this_is_my_domain.com/ is whitelisted for summary card
INFO: Page fetched successfully
INFO: 23 metatags were found
INFO: twitter:card = summary tag found
NFO: Card loaded successfully
But no image is shown. I waited like 2 days to prevent catching.
Any ideas?
EDIT:
I had .jpg picture on the server bu the call was .png :/