diff --git a/core/modules/simpletest/src/WebTestBase.php b/core/modules/simpletest/src/WebTestBase.php
index b6f7a23..014a795 100644
--- a/core/modules/simpletest/src/WebTestBase.php
+++ b/core/modules/simpletest/src/WebTestBase.php
@@ -1485,9 +1485,6 @@ protected function isInChildSite() {
    *   The retrieved HTML string, also available as $this->getRawContent()
    */
   protected function drupalGet($path, array $options = array(), array $headers = array()) {
-    if ($path instanceof Url) {
-      $path = $path->toString();
-    }
     // We re-using a CURL connection here. If that connection still has certain
     // options set, it might change the GET into a POST. Make sure we clear out
     // previous options.
@@ -1500,6 +1497,10 @@ protected function drupalGet($path, array $options = array(), array $headers = a
       $out = $new;
     }
 
+    if ($path instanceof Url) {
+      $path = $path->toString();
+    }
+
     $verbose = 'GET request to: ' . $path .
                '<hr />Ending URL: ' . $this->getUrl();
     if ($this->dumpHeaders) {