diff --git a/filter.php b/filter.php
index 617e786..855d497 100644
--- a/filter.php
+++ b/filter.php
@@ -80,8 +80,9 @@ function filter_generico_callback(array $link){
 	
 	//we use this to see if its a web service calling this, 
 	//in which case we return the alternate content
+    $climode = defined('CLI_SCRIPT') && CLI_SCRIPT;
 	$is_webservice = false;
-	if(property_exists($PAGE, 'url')){
+	if(!$climode){
 	   $is_webservice = strpos($PAGE->url,$CFG->wwwroot .'/webservice/') === 0;
 	}
 	
@@ -413,7 +414,7 @@ function filter_generico_callback(array $link){
 	$require_amd = $conf['template_amd_' . $tempindex] && $CFG->version>=2015051100;
 	
 	//figure out if this is https or http. We don't want to scare the browser
-	if(property_exists($PAGE, 'url') && strpos($PAGE->url->out(),'https:')===0){
+	if(!$climode && strpos($PAGE->url->out(),'https:')===0){
 		$scheme='https:';
 	}else{
 		$scheme='http:';