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src/component/SeleniumBrowser.js

@@ -92,6 +92,7 @@ class SeleniumBrowser {
         let uri = params.uri
         logger.info('URL %s', uri)
         if (uri.indexOf('://') > 3) {
+            if (this.pool) {
                 return this.pool.acquire()
                     .then(async driver => {
                         let html = await driver.get(uri)
@@ -102,6 +103,9 @@ class SeleniumBrowser {
                         this.pool.destroy(driver)
                         return html
                     })
+            }else {
+                throw new Error('Pool is not ready')
+            }
         } else {
             throw new Error('Invalid URI - ' + uri)
         }