diff --git a/enrol/lti/classes/local/ltiadvantage/lib/http_client.php b/enrol/lti/classes/local/ltiadvantage/lib/http_client.php
index 1911ea2e1d0..7d77cf89570 100644
--- a/enrol/lti/classes/local/ltiadvantage/lib/http_client.php
+++ b/enrol/lti/classes/local/ltiadvantage/lib/http_client.php
@@ -77,23 +77,11 @@ class http_client implements IHttpClient {
         $info = $this->curlclient->get_info();
         if (!$this->curlclient->get_errno() && !$this->curlclient->error) {
             // No errors, so format the response.
-            $headersize = $info['header_size'];
-            $resheaders = substr($res ?? '', 0, $headersize);
-            $resbody = substr($res ?? '', $headersize);
-            $headerlines = array_filter(explode("\r\n", $resheaders));
-            $parsedresponseheaders = [
-                'httpstatus' => array_shift($headerlines)
-            ];
-            foreach ($headerlines as $headerline) {
-                $headerbits = explode(':', $headerline, 2);
-                if (count($headerbits) == 2) {
-                    // Only parse headers having colon separation.
-                    $parsedresponseheaders[$headerbits[0]] = $headerbits[1];
-                }
-            }
-            $response = new http_response(['headers' => $parsedresponseheaders, 'body' => $resbody], intval($info['http_code']));
+            $resbody = substr($res ?? '', $info['header_size']);
+            $headers = $this->curlclient->getResponse();
+            $response = new http_response(['headers' => $headers, 'body' => $resbody], intval($info['http_code']));
             if ($response->getStatusCode() >= 400) {
-                throw new http_exception($response, "An HTTP error status was received: '{$response->getHeaders()['httpstatus']}'");
+                throw new http_exception($response, "An HTTP error status was received: '".reset($headers)."'");
             }
             return $response;
         }