Enable clipboard in automated tests with Protractor and webdriver - selenium

Question

I want to test with Protractor an Angular application that accesses the system clipboard using the clipboard api. The problem is that, when executing the test, the Chromium browser asks the user for permission to access the clipboard. I can't close this box from the test, because this is not a DOM element nor an alert window, and it seems not to be any way to access it from Protractor.
clipboard permissions
I have tried to automatically give permission in Chrome, in protractor setup. First, I looked for a command line switch that do it, but it seems not to exist.
Then I found a way that apparently works, but I don't know if its stable: to set an "exception" in Chrome user profile, using the Capabilities of the chrome driver of webdriver. Basically, I add the following lines of my protractor config file:
capabilities: {
'browserName': 'chrome',
'chromeOptions': {
'prefs': {
'profile.content_settings.exceptions.clipboard': {
'http://localhost:8000,*': {'last_modified': Date.now(), 'setting': 1}
}
}
}
}
I have found the value by looking inside Default/Preferences file inside my Chrome profile.
It now works for me, but I don't want to use undocumented features, since they can change anytime without notice. Do you know a better way of doing this? Thanks.

Answer 1

If anyone is looking to do something similar with C#, I have adapted the code as such:
var options = new ChromeOptions();
var clipboardException = new Dictionary<string, object> {
{"[*.]myurl.com,*",
new Dictionary<string, object> {
{"last_modified", DateTimeOffset.Now.ToUnixTimeMilliseconds()},
{"setting", 1}
}
}
};
options.AddUserProfilePreference("profile.content_settings.exceptions.clipboard", clipboardException);