diff --git a/classes/steps/actions/http_post_action_step.php b/classes/steps/actions/http_post_action_step.php
index d7f5390..b802b11 100644
--- a/classes/steps/actions/http_post_action_step.php
+++ b/classes/steps/actions/http_post_action_step.php
@@ -156,7 +156,7 @@ public function execute($step, $trigger, $event, $stepresults) {
 
         $stepresults['http_response_status_code'] = $response->getStatusCode();
         $stepresults['http_response_status_message'] = $response->getReasonPhrase();
-        $stepresults['http_response_body'] = $response->getBody();
+        $stepresults['http_response_body'] = $response->getBody()->getContents();
 
         if ($response->getStatusCode() != $this->expectedresponse) {
             // If we weren't expecting this response, throw an exception.
diff --git a/classes/steps/filters/stringcompare_filter_step.php b/classes/steps/filters/stringcompare_filter_step.php
index d186e68..29267c6 100644
--- a/classes/steps/filters/stringcompare_filter_step.php
+++ b/classes/steps/filters/stringcompare_filter_step.php
@@ -112,6 +112,11 @@ protected function init() {
         $this->field2 = $this->data['field2'];
         $this->operator = $this->data['operator'];
         $this->wantmatch = (bool) $this->data['wantmatch'];
+        $this->erroronfail = false;
+
+        if (!empty($this->data['erroronfail'])) {
+            $this->erroronfail = (bool) $this->data['erroronfail'];
+        }
     }
 
     /**
@@ -161,6 +166,11 @@ public function execute($step, $trigger, $event, $stepresults) {
         // Check whether they wanted the pattern to match, or not match.
         $result = ($ismatch == $this->wantmatch);
 
+        // Check if we want it to error on failure, and the result was not true.
+        if (($this->erroronfail == true) && !$result) {
+            throw new \moodle_exception('erroronfail for stringcompare', 'tool_trigger');
+        }
+
         return [$result, $stepresults];
     }
 
@@ -212,6 +222,13 @@ public function form_definition_extra($form, $mform, $customdata) {
 
         $mform->addGroup($fields, 'stringcomparegroup', '', [' '], false);
         $mform->addRule('stringcomparegroup', get_string('required'), 'required');
+
+        // Error instead of failure.
+        $mform->addElement('advcheckbox', 'erroronfail', get_string ('erroronfail', 'tool_trigger'),
+            'Enable', array(), array(0, 1));
+        $mform->setType('erroronfail', PARAM_INT);
+        $mform->addHelpButton('erroronfail', 'erroronfail', 'tool_trigger');
+        $mform->setDefault('erroronfail', 0);
     }
 
     /**
diff --git a/lang/en/tool_trigger.php b/lang/en/tool_trigger.php
index b16e039..e435bef 100644
--- a/lang/en/tool_trigger.php
+++ b/lang/en/tool_trigger.php
@@ -86,6 +86,8 @@
 $string['emailcontent_help'] = 'The content to use in the email';
 $string['emailactionstepname'] = 'Email';
 $string['emailactionstepdesc'] = 'A step to allow an e-mail to be sent';
+$string['erroronfail'] = 'Error on failure';
+$string['erroronfail_help'] = 'Set the step to error instead of fail';
 $string['event'] = 'Event';
 $string['eventdescription'] = 'Event description';
 $string['eventfields'] = 'Event fields';