Issue #3110663 by samuel.mortenson: Metatags for twitter:image and og:image not respected

modules/tome_static/src/StaticGenerator.php

@@ -396,6 +396,21 @@ class StaticGenerator implements StaticGeneratorInterface {
         $paths[] = $node->getAttribute('href');
       }
     }
+    $meta_files = [
+      'twitter:image',
+      'twitter:player:stream',
+      'og:image',
+      'og:video',
+      'og:audio',
+      'og:image:url',
+      'og:image:secure_url',
+    ];
+    /** @var \DOMElement $node */
+    foreach ($document->getElementsByTagName('meta') as $node) {
+      if ((in_array($node->getAttribute('property'), $meta_files, TRUE) || in_array($node->getAttribute('name'), $meta_files, TRUE)) && $node->hasAttribute('content')) {
+        $paths[] = $node->getAttribute('content');
+      }
+    }
     /** @var \DOMElement $node */
     foreach ($document->getElementsByTagName('a') as $node) {
       if ($node->hasAttribute('href')) {

modules/tome_static/tests/modules/tome_test/src/Controller/TestController.php

@@ -40,6 +40,8 @@ class TestController extends ControllerBase {
 <a href='/path/with/destination?destination=foo&bar=baz'></a>
 <iframe src='/random/iframe'></iframe>
 <img src=\"data:image/jpeg;base64,x\" />
+<meta name=\"twitter:image\" content=\"/twitter_image.png\" />
+<meta property=\"og:image\" content=\"/og_image.png\" />
 <svg><use xlink:href='/use.svg'></use></svg>",
       '#attached' => [
         'library' => [

modules/tome_static/tests/src/Kernel/StaticGeneratorTest.php

@@ -224,6 +224,8 @@ class StaticGeneratorTest extends TestBase {
     $this->assertContains('/random/iframe', $invoke_paths);
     $this->assertContains('/core/assets/vendor/html5shiv/html5shiv.min.js?v=3.7.3', $invoke_paths);
     $this->assertContains('/use.svg', $invoke_paths);
+    $this->assertContains('/twitter_image.png', $invoke_paths);
+    $this->assertContains('/og_image.png', $invoke_paths);
     $this->assertNotContains('data:image/jpeg;base64,x', $invoke_paths);
 
     $static->exportPaths($invoke_paths);