Selenium JS : can't get rid of exception unexpected alert open: {Alert text : xxx}

I have a page in which an alert box may appear randomly if I click on a button. I auto click on this button every 5 seconds. I want to get rid/ignore all possible alerts but it the exception unexpected alert open: {Alert text : xxx} won't disappear despite I tried this :

Solution (1) that I tried

// Add --disable-notifications to chrome opti开发者_运维技巧ons 
let options = new chrome.Options();
options.addArguments("--disable-notifications")
const driver = new 
webdriver.Builder().forBrowser("chrome").setChromeOptions(options).build();

Solution (2) that I tried :

// set the driver capabilities to accept silently all dialogs 
// I double-checked the key/values strings of the capabilities  
const capabilities = await driver.getCapabilities()
await capabilities.set('unhandledPromptBehavior', 'accept')

Any idea ?