no block caching for anonymous

modules/roblib_search_eds/src/Plugin/Block/RoblibSearchEdsArticles.php

@@ -38,5 +38,16 @@ class RoblibSearchEdsArticles extends BlockBase {
       ],
     ];
   }
-  
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheMaxAge() {
+    // Reading dynamic content from external source so no caching.
+    if (\Drupal::currentUser()->isAnonymous()) {
+      // Anonymous user...
+      return 0;
+    }
+  }
+
 }

modules/roblib_search_eds/src/Plugin/Block/RoblibSearchEdsBooks.php

@@ -38,6 +38,17 @@ class RoblibSearchEdsBooks extends BlockBase {
       ],
     ];
   }
-  
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheMaxAge() {
+    // Reading dynamic content from external source so no caching.
+    if (\Drupal::currentUser()->isAnonymous()) {
+      // Anonymous user...
+      return 0;
+    }
+  }
+
 
 }

modules/solr_site/src/Plugin/Block/RoblibSearchSolrsiteBestbet.php

@@ -36,5 +36,16 @@ class RoblibSearchSolrSiteBestbet extends BlockBase {
       ],
     ];
  }
- 
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheMaxAge() {
+    // Reading dynamic content from external source so no caching.
+    if (\Drupal::currentUser()->isAnonymous()) {
+      // Anonymous user...
+      return 0;
+    }
+  }:q
+
 }

modules/solr_site/src/Plugin/Block/RoblibSearchSolrsiteGeneral.php

@@ -38,5 +38,16 @@ class RoblibSearchSolrsiteGeneral extends BlockBase {
       ],
     ];
  }
- 
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheMaxAge() {
+    // Reading dynamic content from external source so no caching.
+    if (\Drupal::currentUser()->isAnonymous()) {
+      // Anonymous user...
+      return 0;
+    }
+  }
+
 }