Fixed JS bug in Chrome driver

drivers/chrome/js/driver.js

@@ -178,7 +178,7 @@
 
 				w.log('w.driver.ping: ' + JSON.stringify(w.ping));
 
-				w.ping = {};
+				w.ping = { hostnames: {} };
 			}
 		},
 

drivers/chrome/manifest.json

@@ -1,7 +1,7 @@
 { "name": "Wappalyzer",
 	"homepage_url": "http://wappalyzer.com?utm_source=chrome&utm_medium=context&utm_campaign=extensions",
 	"description": "Identifies software on the web",
-	"version": "2.19",
+	"version": "2.20",
 	"default_locale": "en",
 	"manifest_version": 2,
 	"icons": {

drivers/firefox/content/js/driver.js

@@ -287,7 +287,7 @@
 
 				w.log('w.driver.ping: ' + JSON.stringify(w.ping));
 
-				w.ping = {};
+				w.ping = { hostnames: {} };
 			}
 		}
 	};