Allow Flash content in Chrome 69 running via chromedriver

Question

Does anybody know how to enable Flash plugin in Chrome 69. I use chromedriver 2.41 with java selenium bindings. I've tried with

prefs.put("profile.default_content_setting_values.plugins", 1);
prefs.put("profile.content_settings.plugin_whitelist.adobe-flash-player", 1);
prefs.put("profile.content_settings.exceptions.plugins.*,*.per_resource.adobe-flash-player", 1);

but with no luck. I've also tried to compare chrome profile preferences with disallowed/allowed flash for particular site and then tried with:

            Map<String, Object> site = new HashMap<>();
            Map<String, Object> values = new HashMap<>();
            Map<String, Object> setting = new HashMap<>();
            setting.put("flashPreviouslyChanged", true);
            values.put("last_modified", "13180613213099316");
            values.put("setting", setting);
            site.put("http://my.site,*", values);
            prefs.put("profile.content_settings.exceptions.flash_data", site);

but it won't work as well.

I've also tried to run with profile specified via

options.addArguments("user-data-dir=" + profileDir);

but since this white list setting becomes 'ephemeral' in Chrome 69 it also won't work.

Is there any method to run my automation in Chrome with flash support?

Answer 1

Thanks everyone for answers.

I finally have found the solution. In order to enable flash progrmatically since Chrome 69 we have to do 2 things:

1. Disable Ephemeral Flash Permissions (to enable list of allowed for Flash sites) and
2. Add all sites to that list.

See the following code on Java:

ChromeOptions options = new ChromeOptions();
// disable ephemeral flash permissions flag
options.addArguments("--disable-features=EnableEphemeralFlashPermission");
Map<String, Object> prefs = new HashMap<>();
// Enable flash for all sites for Chrome 69
prefs.put("profile.content_settings.exceptions.plugins.*,*.setting", 1);

options.setExperimentalOption("prefs", prefs);
nestedDriver = new ChromeDriver(options);

Answer 2

Given the flag --disable-features=EnableEphemeralFlashPermission has been removed in Chrome 71 which severely cripples Flash test automation I would like to share our solution.

public class FlashPolicyHelper {

    private final ChromeDriver driver;

    public FlashPolicyHelper(ChromeDriver driver) {
        this.driver = driver;
    }

    public FlashPolicyHelper addSite(String site) {
        this.driver.get("chrome://settings/content/siteDetails?site=" + site);
        WebElement root1 = driver.findElement(By.tagName("settings-ui"));
        WebElement shadowRoot1 = expandRootElement(root1);
        WebElement root2 = shadowRoot1.findElement(getByIdentifier("id=container"));
        WebElement main = root2.findElement(getByIdentifier("id=main"));
        WebElement shadowRoot3 = expandRootElement(main);
        WebElement shadowRoot4 = shadowRoot3.findElement(getByIdentifier("class=showing-subpage"));
        WebElement shadowRoot5 = expandRootElement(shadowRoot4);
        WebElement shadowRoot6 = shadowRoot5.findElement(getByIdentifier("id=advancedPage"));
        WebElement shadowRoot7 = shadowRoot6.findElement(By.tagName("settings-privacy-page"));
        WebElement shadowRoot8 = expandRootElement(shadowRoot7);
        WebElement shadowRoot9 = shadowRoot8.findElement(getByIdentifier("id=pages"));
        WebElement shadowRoot10 = shadowRoot9.findElement(By.tagName("settings-subpage"));
        WebElement shadowRoot11 = shadowRoot10.findElement(By.tagName("site-details"));
        WebElement shadowRoot12 = expandRootElement(shadowRoot11);
        WebElement shadowRoot13 = shadowRoot12.findElement(By.id("plugins"));
        WebElement shadowRoot14 = expandRootElement(shadowRoot13);
        new Select(shadowRoot14.findElement(By.id("permission"))).selectByValue("allow");
        return this;
    }

    private By getByIdentifier(String identifier) {
        String[] identifiers = identifier.split("=");

        return identifiers[0].equals("id") ? By.id(identifiers[1]) :
                By.className(identifiers[1]);
    }

    private WebElement expandRootElement(WebElement element) {
        return (WebElement) driver.executeScript("return arguments[0].shadowRoot",element);
    }
}

The helper should be called after instantiating the ChromeDriver.

 driver = new ChromeDriver(options);
 new FlashPolicyHelper(driver).addSite("https://your.site").addSite("https://another.site");

Answer 3

Follow these steps:

1. Input this URL in Chrome: chrome://flags/
2. On search inputbox, digit: ephemeral flash
3. Choose "disabled" option.

This will not ask to run Flash Player for further sessions in Chrome 69.

Answer 4

Python3 version for Chrome 74. Converted from the Java version of @JohnoCrawford above.

from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import Select

def add_flash_site(driver, web_url):
    def expand_root_element(element):
        return driver.execute_script("return arguments[0].shadowRoot", element)

    driver.get("chrome://settings/content/siteDetails?site=" + web_url)
    root1 = driver.find_element(By.TAG_NAME, "settings-ui")
    shadow_root1 = expand_root_element(root1)
    root2 = shadow_root1.find_element(By.ID, "container")
    root3 = root2.find_element(By.ID, "main")
    shadow_root3 = expand_root_element(root3)
    root4 = shadow_root3.find_element(By.CLASS_NAME, "showing-subpage")
    shadow_root4 = expand_root_element(root4)
    root5 = shadow_root4.find_element(By.ID, "advancedPage")
    root6 = root5.find_element(By.TAG_NAME, "settings-privacy-page")
    shadow_root6 = expand_root_element(root6)
    root7 = shadow_root6.find_element(By.ID, "pages")
    root8 = root7.find_element(By.TAG_NAME, "settings-subpage")
    root9 = root8.find_element(By.TAG_NAME, "site-details")
    shadow_root9 = expand_root_element(root9)
    root10 = shadow_root9.find_element(By.ID, "plugins")
    shadow_root10 = expand_root_element(root10)
    root11 = shadow_root10.find_element(By.ID, "permission")
    Select(root11).select_by_value("allow")