diff --git a/data.json b/data.json
index d96185f..cb7f202 100644
--- a/data.json
+++ b/data.json
@@ -1 +1 @@
-{"scrapeulous.com":{"time":"Sun, 27 Jan 2019 14:51:54 GMT","num_results":"Ungefähr 169 Ergebnisse (0,23 Sekunden) ","no_results":false,"effective_query":"","results":[{"link":"https://scrapeulous.com/","title":"Scrapeulous","snippet":"Scrapeulous.com allows you to scrape various search engines automatically and in large quantities. Whether you need to analyze your competitors market ...","visible_link":"https://scrapeulous.com/","date":"","rank":1},{"link":"https://scrapeulous.com/about/","title":"About - Scrapeulous","snippet":"Scrapeulous.com allows you to scrape various search engines automatically and in large quantities. The business requirement to scrape information from ...","visible_link":"https://scrapeulous.com/about/","date":"","rank":2},{"link":"https://scrapeulous.com/contact/","title":"Contact - Scrapeulous","snippet":"Contact scrapeulous.com. Your email address. Valid email address where we are going to contact you. We will not send spam mail. Your inquiry.","visible_link":"https://scrapeulous.com/contact/","date":"","rank":3},{"link":"https://scrapeulous.com/howto/","title":"Howto - Scrapeulous","snippet":"We offer scraping large amounts of keywords for the Google Search Engine. Large means any number of keywords between 40 and 50000. Additionally, we ...","visible_link":"https://scrapeulous.com/howto/","date":"","rank":4},{"link":"https://incolumitas.com/","title":"Coding, Learning and Business Ideas","snippet":"About · Contact · GoogleScraper · Lichess Autoplay-Bot · Projects · Scrapeulous.com · Site Notice · SVGCaptcha · Home Archives Categories Tags Atom ...","visible_link":"https://incolumitas.com/","date":"","rank":5},{"link":"https://incolumitas.com/pages/scrapeulous/","title":"Coding, Learning and Business Ideas – Scrapeulous.com - Incolumitas","snippet":"In autumn 2018, I created a scraping service called scrapeulous.com. There you can purchase scrape jobs that allow you to upload a keyword file which in turn ...","visible_link":"https://incolumitas.com/pages/scrapeulous/","date":"","rank":6},{"link":"https://www.youtube.com/watch?v=a6xn6rc9GbI","title":"scrapeulous intro - YouTube","snippet":"Introduction for https://scrapeulous.com.","visible_link":"https://www.youtube.com/watch?v=a6xn6rc9GbI","date":"","rank":7},{"link":"https://www.youtube.com/channel/UCJs1Xei5LRefg9GwFYdYhOw","title":"Scrapeulous Scrapeulous - YouTube","snippet":"How to use scrapeulous.com - Duration: 3 minutes, 42 seconds. 32 minutes ago; 4 views. Introduction for https://scrapeulous.com. Show more. This item has ...","visible_link":"https://www.youtube.com/.../UCJs1Xei5LRefg9GwFYdYhOw","date":"","rank":8},{"link":"https://readthedocs.org/projects/googlescraper/downloads/pdf/latest/","title":"GoogleScraper Documentation - Read the Docs","snippet":"23.12.2018 - 1.1 Scrapeulous.com - Scraping Service. GoogleScraper is a open source tool and will remain a open source tool in the future. Some people ...","visible_link":"https://readthedocs.org/projects/googlescraper/downloads/.../latest...","date":"23.12.2018 - ","rank":9}]}}
\ No newline at end of file
+{"scrapeulous.com":{"time":"Sun, 27 Jan 2019 18:07:33 GMT","num_results":"Ungefähr 101 Ergebnisse","no_results":false,"effective_query":"","results":[]}}
\ No newline at end of file
diff --git a/examples/pluggable.js b/examples/pluggable.js
index 90c634a..3fda333 100644
--- a/examples/pluggable.js
+++ b/examples/pluggable.js
@@ -1,39 +1,46 @@
-module.exports = {
-    get_browser: get_browser,
-    handle_metadata: handle_metadata,
-    close_browser: close_browser
-};
+module.exports = class Pluggable {
+    constructor(options = {}) {
+        const {
+            chromeFlags = [
+                '--no-sandbox',
+                '--disable-setuid-sandbox',
+                '--disable-dev-shm-usage',
+                '--disable-accelerated-2d-canvas',
+                '--disable-gpu',
+                '--window-size=1920x1080',
+                '--hide-scrollbars',
+                '--user-agent=Chrome',
+            ],
+            userAgent = 'Chrome',
+            headless = true,
+        } = options;
 
-async function close_browser(browser) {
-    await browser.close();
-}
+        this.chromeFlags = chromeFlags;
+        this.userAgent = userAgent;
+        this.headless = headless;
 
-async function handle_metadata() {
-    // silence
-}
+        this.chromeFlags.push(this.userAgent);
+    }
 
-async function get_browser(launch_args) {
-    const puppeteer = require('puppeteer');
+    async close_browser() {
+        await this.browser.close();
+    }
 
-    const ADDITIONAL_CHROME_FLAGS = [
-        '--no-sandbox',
-        '--disable-setuid-sandbox',
-        '--disable-dev-shm-usage',
-        '--disable-accelerated-2d-canvas',
-        '--disable-gpu',
-        '--window-size=1920x1080',
-        '--hide-scrollbars',
-        '--user-agent=Chrome',
-    ];
+    async handle_metadata(args) {
+        // silence
+    }
 
-    let custom_args = {
-        args: ADDITIONAL_CHROME_FLAGS,
-        headless: true,
-    };
+    async start_browser(args={}) {
+        const puppeteer = require('puppeteer');
 
-    browser = await puppeteer.launch(launch_args);
+        let launch_args = {
+            args: args.chromeFlags || this.chromeFlags,
+            headless: args.headless || this.headless,
+        };
 
-    console.log('Loaded custom function get_browser()');
+        this.browser = await puppeteer.launch(launch_args);
+        console.log('Loaded custom function get_browser()');
 
-    return browser;
-}
\ No newline at end of file
+        return this.browser;
+    }
+};
\ No newline at end of file
diff --git a/run.js b/run.js
index 0c71fc1..a2ca59e 100644
--- a/run.js
+++ b/run.js
@@ -35,7 +35,7 @@ let config = {
     // get_browser, handle_metadata, close_browser
     // must be an absolute path to the module
     //custom_func: resolve('examples/pluggable.js'),
-    custom_func: '',
+    custom_func: resolve('examples/pluggable.js'),
 };
 
 se_scraper.scrape(config, (err, response) => {
diff --git a/src/node_scraper.js b/src/node_scraper.js
index 654ebf1..4584623 100644
--- a/src/node_scraper.js
+++ b/src/node_scraper.js
@@ -21,13 +21,13 @@ function write_results(fname, data) {
 }
 
 module.exports.handler = async function handler (config, context, callback) {
-
-	custom_func = null;
+	pluggable = null;
 	if (config.custom_func && fs.existsSync(config.custom_func)) {
 		try {
-			custom_func = require(config.custom_func);
+			Pluggable = require(config.custom_func);
+			pluggable = new Pluggable();
 		} catch (exception) {
-
+			console.error(exception);
 		}
 	}
 
@@ -75,8 +75,9 @@ module.exports.handler = async function handler (config, context, callback) {
 			console.log("Chrome Args: ", launch_args);
 		}
 
-        if (custom_func) {
-        	browser = await custom_func.get_browser(launch_args);
+        if (pluggable) {
+			launch_args.config = config;
+			browser = await pluggable.start_browser(launch_args);
 		} else {
 			browser = await puppeteer.launch(launch_args);
 		}
@@ -126,8 +127,8 @@ module.exports.handler = async function handler (config, context, callback) {
             metadata = await meta.get_metadata(browser);
         }
 
-		if (custom_func) {
-			await custom_func.close_browser(browser);
+		if (pluggable) {
+			await pluggable.close_browser();
 		} else {
 			await browser.close();
 		}
@@ -158,8 +159,8 @@ module.exports.handler = async function handler (config, context, callback) {
 				console.log(metadata);
 			}
 
-			if (custom_func) {
-				await custom_func.handle_metadata(metadata);
+			if (pluggable) {
+				await pluggable.handle_metadata({metadata: metadata, config: config});
 			}
 		}