new db files now using .json extension from cdn

src/background.js

@@ -70,7 +70,7 @@ const {
 const IS_EDGE = (BROWSER_INFO.name === 'edge');
 const IS_FIREFOX = (BROWSER_INFO.name === 'firefox');
 const IS_ANDROID = (BROWSER_INFO.os === 'android');
-const VERSION_CHECK_URL = `${CDN_BASE_URL}/update/v4/version`;
+const VERSION_CHECK_URL = `${CDN_BASE_URL}/update/v4/versions.json`;
 const REAL_ESTATE_ID = 'ghostery';
 const ONE_DAY_MSEC = 86400000;
 const ONE_HOUR_MSEC = 3600000;

src/classes/Updatable.js

@@ -130,7 +130,7 @@ class Updatable {
 	 */
 	_remoteFetcher(callback) {
 		log(`fetching ${this.type} from remote`);
-		const UPDATE_URL = `${CDN_BASE_URL}/update/v4/${this.type}`;
+		const UPDATE_URL = `${CDN_BASE_URL}/update/v4/${this.type}.json`;
 
 		getJson(UPDATE_URL).then((list) => {
 			callback(true, list);