Fix error handling in NPM/Puppeteer

src/drivers/npm/browsers/puppeteer.js

@@ -68,18 +68,19 @@ class PuppeteerBrowser extends Browser {
   }
 
   async visit(url) {
+    return new Promise(async (resolve, reject) => {
       let done = false;
       let browser;
 
       try {
         browser = await this.browser();
       } catch (error) {
-      throw new Error(error.message || error.toString());
+        reject(new Error(error.message || error.toString()));
       }
 
       browser.on('disconnected', () => {
         if (!done) {
-        throw new Error('Disconnected');
+          reject(new Error('Disconnected'));
         }
       });
 
@@ -90,9 +91,7 @@ class PuppeteerBrowser extends Browser {
 
         await page.setRequestInterception(true);
 
-      page.on('error', (error) => {
-        throw new Error(error.message || error.toString());
-      });
+        page.on('error', reject);
 
         page.on('request', request => request.continue());
 
@@ -122,7 +121,7 @@ class PuppeteerBrowser extends Browser {
 
         await Promise.race([
           page.goto(url, { waitUntil: 'networkidle2' }),
-        new Promise(resolve => setTimeout(resolve, this.options.maxWait)),
+          new Promise(_resolve => setTimeout(_resolve, this.options.maxWait)),
         ]);
 
         // eslint-disable-next-line no-undef
@@ -156,12 +155,13 @@ class PuppeteerBrowser extends Browser {
 
         this.html = await page.content();
       } catch (error) {
-      throw new Error(error.message || error.toString());
+        reject(error.message || error.toString());
       } finally {
         done = true;
 
         await browser.close();
       }
+    });
   }
 }
 

src/drivers/npm/package.json

@@ -2,7 +2,7 @@
   "name": "wappalyzer",
   "description": "Uncovers the technologies used on websites",
   "homepage": "https://github.com/AliasIO/Wappalyzer",
-  "version": "5.9.12",
+  "version": "5.9.13",
   "author": "Elbert Alias",
   "license": "GPL-3.0",
   "repository": {

src/wappalyzer.js

@@ -322,7 +322,7 @@ class Wappalyzer {
    *
    */
   ping() {
-    if (Object.keys(this.hostnameCache).length > 100) {
+    if (Object.keys(this.hostnameCache).length > 25) {
       this.driver.ping(this.hostnameCache);
 
       this.hostnameCache = {};