🐛 Fixed X (formerly Twitter) only showing an image when sharing posts

no issue

- switched `summary_large_image` for `summary` in the `twitter:card` metadata because X no longer includes a summary with the image making sharing links awkward

ghost/core/core/frontend/apps/private-blogging/lib/views/private.hbs

@@ -30,7 +30,7 @@
             <meta name="twitter:image" content="{{img_url @site.cover_image absolute="true"}}">
         {{/if}}
 
-        <meta name="twitter:card" content="summary_large_image">
+        <meta name="twitter:card" content="summary">
         <meta name="twitter:site" content="@ghost">
         <meta property="article:publisher" content="https://www.facebook.com/ghost">
         <meta name="referrer" content="no-referrer-when-downgrade">

ghost/core/core/frontend/meta/structured-data.js

@@ -1,14 +1,7 @@
 const socialUrls = require('@tryghost/social-urls');
 
 function getStructuredData(metaData) {
-    let structuredData;
-    let card = 'summary';
-
-    if (metaData.twitterImage || metaData.coverImage.url) {
-        card = 'summary_large_image';
-    }
-
-    structuredData = {
+    let structuredData = {
         'og:site_name': metaData.site.title,
         'og:type': metaData.ogType,
         'og:title': metaData.ogTitle,
@@ -23,7 +16,7 @@ function getStructuredData(metaData) {
         'article:tag': metaData.keywords,
         'article:publisher': metaData.site.facebook ? socialUrls.facebook(metaData.site.facebook) : undefined,
         'article:author': metaData.authorFacebook ? socialUrls.facebook(metaData.authorFacebook) : undefined,
-        'twitter:card': card,
+        'twitter:card': 'summary',
         'twitter:title': metaData.twitterTitle,
         'twitter:description': metaData.twitterDescription,
         'twitter:url': metaData.canonicalUrl,

ghost/core/test/unit/frontend/meta/structured-data.test.js

@@ -52,7 +52,7 @@ describe('getStructuredData', function () {
             'og:title': 'Post Title',
             'og:type': 'article',
             'og:url': 'http://mysite.com/post/my-post-slug/',
-            'twitter:card': 'summary_large_image',
+            'twitter:card': 'summary',
             'twitter:data1': 'Test User',
             'twitter:data2': ['one', 'two', 'tag'].join(', '),
             'twitter:description': 'Post meta description',
@@ -114,7 +114,7 @@ describe('getStructuredData', function () {
             'og:title': 'Custom Facebook title',
             'og:type': 'article',
             'og:url': 'http://mysite.com/post/my-post-slug/',
-            'twitter:card': 'summary_large_image',
+            'twitter:card': 'summary',
             'twitter:data1': 'Test User',
             'twitter:data2': ['one', 'two', 'tag'].join(', '),
             'twitter:description': 'Custom Twitter description',