set_local_storage_item error in UC mode and doesn't work in CDP mode

[Valleymu]

Hi, I need to set value in localStorage, I'm using CDP mode

with SB( uc=True, incognito=True, locale_code="en", extension_dir='extension/buster', headed=True, xvfb=False, window_size="1920,1080", window_position="0,0", maximize=True ) as sb: sb.activate_cdp_mode("https://discord.com/login") sb.sleep(3) token = "XXX" sb.cdp.set_local_storage_item("token", f'"{token}"') sb.cdp.refresh() sb.sleep(1990) 

But after sb.cdp.refresh() is called token is being cleared (it's same when I manually add item and refresh cdp page)

So I've tried with UC mode:

with SB( uc=True, incognito=True, locale_code="en", extension_dir='extension/buster', headed=True, xvfb=False, window_size="1920,1080", window_position="0,0", maximize=True ) as sb: sb.uc_open_with_reconnect("https://discord.com/login") sb.sleep(3) token = "XXX" sb.set_local_storage_item("token", f'"{token}"') sb.refresh() sb.sleep(1990) 

But it fails with:

Traceback (most recent call last): File "C:\Users\Admin\PycharmProjects\autovoter2-t\test.py", line 29, in <module> sb.set_local_storage_item("token", f'"{token}"') File "C:\Users\Admin\PycharmProjects\autovoter2-t\venv\lib\site-packages\seleniumbase\fixtures\base_case.py", line 8903, in set_local_storage_item self.execute_script( File "C:\Users\Admin\PycharmProjects\autovoter2-t\venv\lib\site-packages\seleniumbase\fixtures\base_case.py", line 3423, in execute_script return self.driver.execute_script(script, *args, **kwargs) File "C:\Users\Admin\PycharmProjects\autovoter2-t\venv\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 444, in execute_script return self.execute(command, {"script": script, "args": converted_args})["value"] File "C:\Users\Admin\PycharmProjects\autovoter2-t\venv\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 384, in execute self.error_handler.check_response(response) File "C:\Users\Admin\PycharmProjects\autovoter2-t\venv\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 232, in check_response raise exception_class(message, screen, stacktrace) selenium.common.exceptions.JavascriptException: Message: javascript error: Cannot read properties of undefined (reading 'setItem') (Session info: chrome=138.0.7204.100) 

When I manually run :

localStorage.setItem("test", "test")

in console it works only when I change JS context from "top" to "DevTools Performance Metrics"

[SSujitX]

Hi, I need to set value in localStorage, I'm using CDP mode

Incognito mode doesn't support extensions.

Did you check sb.cdp.reload(ignore_cache=True, script_to_evaluate_on_load=None)?

[Valleymu]

Actually looks lke setting localStorage item using cdp on discord login page doesn't have any result. There's no item created:

with SB( uc=True, locale_code="en", headed=True, xvfb=False, window_size="1920,1080", window_position="0,0", maximize=True ) as sb: sb.activate_cdp_mode("https://discord.com/login") sb.sleep(3) token = "XXX" sb.cdp.set_local_storage_item("token", f'"{token}"') sb.sleep(1990) 

[Valleymu]

Actually problem was that discord remove reference to localStorage https://stackoverflow.com/questions/52509440/discord-window-localstorage-is-undefined-how-to-get-access-to-the-localstorage