diff --git a/package.json b/package.json
index 341ac46..330d68f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "se-scraper",
-  "version": "1.3.5",
+  "version": "1.3.7",
   "description": "A module using puppeteer to scrape several search engines such as Google, Duckduckgo, Bing or Baidu",
   "homepage": "https://scrapeulous.com/",
   "main": "index.js",
diff --git a/src/modules/se_scraper.js b/src/modules/se_scraper.js
index 4cf8973..e7b7a3a 100644
--- a/src/modules/se_scraper.js
+++ b/src/modules/se_scraper.js
@@ -220,7 +220,11 @@ module.exports = class Scraper {
                         console.error(`You have ${this.SOLVE_CAPTCHA_TIME}ms to enter the captcha.`);
                         // expect that user filled out necessary captcha
                     } else {
-                        break;
+                        if (this.config.throw_on_detection === true) {
+                            throw( e );
+                        } else {
+                            break;
+                        }
                     }
                 } else {
                     // some other error, quit scraping process if stuff is broken
@@ -228,7 +232,11 @@ module.exports = class Scraper {
                         console.error('You have 30 seconds to fix this.');
                         await this.sleep(30000);
                     } else {
-                        break;
+                        if (this.config.throw_on_detection === true) {
+                            throw( e );
+                        } else {
+                            break;
+                        }
                     }
                 }
 
diff --git a/src/modules/user_agents.js b/src/modules/user_agents.js
index 72a1df2..382ae1d 100644
--- a/src/modules/user_agents.js
+++ b/src/modules/user_agents.js
@@ -1,8 +1,4 @@
 
-function random_user_agent(user_agents) {
-    return user_agents[Math.floor(Math.random() * user_agents.length)];
-}
-
 // updated: 17 June 2019
 // https://techblog.willshouse.com/2012/01/03/most-common-user-agents/
 const user_agents = [
@@ -104,6 +100,11 @@ const user_agents = [
     'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36',
 ];
 
+
+function random_user_agent(ua_list = []) {
+    return user_agents[Math.floor(Math.random() * user_agents.length)];
+}
+
 module.exports = {
     random_user_agent: random_user_agent,
     user_agents: user_agents,
diff --git a/src/node_scraper.js b/src/node_scraper.js
index b158163..f95d7a3 100644
--- a/src/node_scraper.js
+++ b/src/node_scraper.js
@@ -109,6 +109,7 @@ class ScrapeManager {
             // get_browser, handle_metadata, close_browser
             //custom_func: resolve('examples/pluggable.js'),
             custom_func: '',
+            throw_on_detection: true,
             // use a proxy for all connections
             // example: 'socks5://78.94.172.42:1080'
             // example: 'http://118.174.233.10:48400'