Use 3rd param instead.

src/View/Helper/PaginatorHelper.php

@@ -468,28 +468,30 @@ public function sort($key, $title = null, array $options = [])
     /**
      * Merges passed URL options with current pagination state to generate a pagination URL.
      *
-     * ### Options:
+     * ### Url options:
      *
      * - `escape`: If false, the URL will be returned unescaped, do only use if it is manually
      *    escaped afterwards before being displayed.
      * - `fullBase`: If true, the full base URL will be prepended to the result
      *
      * @param array $options Pagination/URL options array
      * @param string|null $model Which model to paginate on
-     * @param bool $full If true, the full base URL will be prepended to the result @deprecated Use $options and `fullBase`.
+     * @param array|bool $urlOptions Array of options or bool `fullBase` for BC reasons.
      * @return string By default, returns a full pagination URL string for use in non-standard contexts (i.e. JavaScript)
      * @link http://book.cakephp.org/3.0/en/views/helpers/paginator.html#generating-pagination-urls
      */
-    public function generateUrl(array $options = [], $model = null, $full = false)
+    public function generateUrl(array $options = [], $model = null, $urlOptions = false)
     {
         $paging = $this->params($model);
         $paging += ['page' => null, 'sort' => null, 'direction' => null, 'limit' => null];
 
-        $defaults = [
+        if (!is_array($urlOptions)) {
+            $urlOptions = ['fullBase' => $urlOptions];
+        }
+        $urlOptions += [
             'escape' => true,
-            'fullBase' => $full
+            'fullBase' => false
         ];
-        $options += $defaults;
 
         $url = [
             'page' => $paging['page'],
@@ -531,7 +533,7 @@ public function generateUrl(array $options = [], $model = null, $full = false)
             }
         }
 
-        return $this->Url->build($url, $options);
+        return $this->Url->build($url, $urlOptions);
     }
 
     /**