bugfix: prevent error 'Error: Failed to execute WebDriver Bidi command "sessionSubscribe" as no Bidi session was established. Make sure you enable it by setting "webSocketUrl: true" in your capabilities and verify that your environment and browser supports it.' being printed to stdout when user deactivated Bidi protocol with "bidiProtocol" : false in Webdriver config.

Author: ngraf

lib/helper/WebDriver.js

@@ -491,7 +491,7 @@ class WebDriver extends Helper {
     }
     config.capabilities.browserName = config.browser || config.capabilities.browserName
 
-    // WebDriver Bidi Protocol. Default: false
+    // WebDriver Bidi Protocol. Default: true
     config.capabilities.webSocketUrl = config.bidiProtocol ?? config.capabilities.webSocketUrl ?? true
 
     config.capabilities.browserVersion = config.browserVersion || config.capabilities.browserVersion
@@ -629,7 +629,11 @@ class WebDriver extends Helper {
 
     this.browser.on('dialog', () => {})
 
-    await this.browser.sessionSubscribe({ events: ['log.entryAdded'] })
+    // Check for Bidi, because "sessionSubscribe" is an exclusive Bidi protocol feature. Otherwise, error will be thrown.
+    if (config.capabilities.webSocketUrl) {
+      await this.browser.sessionSubscribe({ events: ['log.entryAdded'] })
+    }
+
     this.browser.on('log.entryAdded', logEvents)
 
     return this.browser