ERROR: No card found (Card error)


#1

Issue: All of a sudden Twitter Cards aren’t being pulled for one of my clients.

URL affected: https://www.steadfast.net/blog/your-web-apps-backend-vulnerable-because-misconfiguration

It never had the meta tags before and always worked just fine. Suddenly today it’s no longer working so I added the tags. Still nothing:

<meta name="twitter:card" content="summary_large_image"/>
<meta name="twitter:title" content="Is Your Web App&#039;s Backend Vulnerable Because Of Misconfiguration?"/>
<meta name="twitter:description" content="Modern web applications can be enormously complex on the backend, comprising many different services including caching, databases, queue management, load balancers, proxy servers, and analytics tools."/>
<meta name="twitter:image" content="https://www.steadfast.net/sites/default/files/your-backend-insecure-because-of-misconfiguration_0.jpg"/>

#2

Using the steps in the troubleshooting post, I just fetched that page using curl and the Twitterbot user-agent.

I only see two tags:

<meta name="twitter:title" content="Is Your Web App&#039;s Backend Vulnerable Because Of Misconfiguration?"/>
<meta name="twitter:description" content="Modern web applications can be enormously complex on the backend, comprising many different se

I conclude that there’s some issue with the page setup.


#3

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