JavaScriptError.readErrors(driver) always fails

[DavidPerezIngeniero]

I'm using WebDriver to start Firefox. Then I use SikuliX to send keystrokes and mouse clicks. After, I try to collect all errors by using:

JavaScriptError.readErrors(driver)

The result is always:

NoSuchWindowException Browsing context has been discarded

even though I haven't called driver.close(). How can I capture errors?

More info:

Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 66.0.5, 
javascriptEnabled: true, moz:accessibilityChecks: false, moz:geckodriverVersion: 0.24.0, 
moz:headless: false, moz:processID: 2248, moz:profile: /tmp/rust_mozprofile.4rGV9F..., 
moz:shutdownTimeout: 60000, moz:useNonSpecCompliantPointerOrigin: false, 
moz:webdriverClick: true, pageLoadStrategy: normal, platform: LINUX, 
platformName: LINUX, platformVersion: 3.10.0-862.14.4.el7.x86_64, rotatable: false, 
setWindowRect: true, strictFileInteractability: false, 
timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, 
unhandledPromptBehavior: dismiss and notify}

Versions:

• CentOS 7
• Firefox 66.0.5
• Java WebDriver 3.141.59
• Java 8
• JSErrorCollector 0.5-atlassian-2

This trace could provide a hint of what is going on:

File /tmp/rust_mozprofile.QWClT5upzfGf/extensions/[email protected] does not contain a valid manifest(resource://gre/modules/addons/XPIInstall.jsm:557:11) JS Stack trace: [email protected]:557:11
[email protected]:186:3
[email protected]:620:10
[email protected]:2340:21
[email protected]:2700:21
[email protected]:2570:34
[email protected]:2148:25
[email protected]:203:12
[email protected]:652:5
[email protected]:805:9
[email protected]:2775:5
[email protected]:66:9