no block caching for anonymous

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

@@ -39,4 +39,15 @@ 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

@@ -39,5 +39,16 @@ 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

@@ -37,4 +37,15 @@ 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

@@ -39,4 +39,15 @@ 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;
+    }
+  }
+
 }