[🐛 Bug]: [py] FedCM dialog not opening #15581

cgoldberg · 2025-04-06T05:52:29Z

Description

I'm not even sure what FedCM is/does, but there is a Python test in Selenium's CI that keeps failing: py/test/selenium/webdriver/common/fedcm_tests.py

When I run this test locally, I get 2 failures:

FAILED py/test/selenium/webdriver/common/fedcm_tests.py::TestFedCM::test_trigger_and_verify_dialog_subtitle - selenium.common.exceptions.TimeoutException: Message:
FAILED py/test/selenium/webdriver/common/fedcm_tests.py::TestFedCM::test_trigger_and_verify_account_list - selenium.common.exceptions.TimeoutException: Message:

They both seem to be timing out waiting for the FedCM dialog to open. I can reproduce this using the code below.

Environment info:

Chrome/ChromeDriver 135.0.7049.42
Python 3.13
Linux (Debian Stable)

Reproducible Code

from selenium import webdriver

driver = webdriver.Chrome()
dialog = driver.fedcm_dialog()

Debugging Logs

DEBUG:selenium.webdriver.common.selenium_manager:Selenium Manager binary found at: /home/cgoldberg617/code/selenium/py/selenium/webdriver/common/linux/selenium-manager
DEBUG:selenium.webdriver.common.selenium_manager:Executing process: /home/cgoldberg617/code/selenium/py/selenium/webdriver/common/linux/selenium-manager --browser chrome --debug --language-binding python --output json
DEBUG:selenium.webdriver.common.selenium_manager:chromedriver not found in PATH
DEBUG:selenium.webdriver.common.selenium_manager:chrome not found in PATH
DEBUG:selenium.webdriver.common.selenium_manager:chrome not found in the system
DEBUG:selenium.webdriver.common.selenium_manager:Required browser: chrome 135.0.7049.42
DEBUG:selenium.webdriver.common.selenium_manager:chrome 135.0.7049.42 already exists
DEBUG:selenium.webdriver.common.selenium_manager:chrome 135.0.7049.42 is available at /home/cgoldberg617/.cache/selenium/chrome/linux64/135.0.7049.42/chrome
DEBUG:selenium.webdriver.common.selenium_manager:Required driver: chromedriver 135.0.7049.42
DEBUG:selenium.webdriver.common.selenium_manager:chromedriver 135.0.7049.42 already in the cache
DEBUG:selenium.webdriver.common.selenium_manager:Driver path: /home/cgoldberg617/.cache/selenium/chromedriver/linux64/135.0.7049.42/chromedriver
DEBUG:selenium.webdriver.common.selenium_manager:Browser path: /home/cgoldberg617/.cache/selenium/chrome/linux64/135.0.7049.42/chrome
DEBUG:selenium.webdriver.common.service:Started executable: `/home/cgoldberg617/.cache/selenium/chromedriver/linux64/135.0.7049.42/chromedriver` in a child process with pid: 10142 using 0 to output -3
DEBUG:selenium.webdriver.remote.remote_connection:POST http://localhost:47285/session {'capabilities': {'firstMatch': [{}], 'alwaysMatch': {'browserName': 'chrome', 'pageLoadStrategy': <PageLoadStrategy.normal: 'normal'>, 'browserVersion': None, 'goog:chromeOptions': {'extensions': [], 'binary': '/home/cgoldberg617/.cache/selenium/chrome/linux64/135.0.7049.42/chrome', 'args': []}}}}
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): localhost:47285
DEBUG:urllib3.connectionpool:http://localhost:47285 "POST /session HTTP/1.1" 200 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=200 | data={"value":{"capabilities":{"acceptInsecureCerts":false,"browserName":"chrome","browserVersion":"135.0.7049.42","chrome":{"chromedriverVersion":"135.0.7049.42 (0f351bbd2617e0f775543271f34b7d241f8ebcdc-refs/branch-heads/7049@{#1349})","userDataDir":"/tmp/.org.chromium.Chromium.s1s4ly"},"fedcm:accounts":true,"goog:chromeOptions":{"debuggerAddress":"localhost:43219"},"networkConnectionEnabled":false,"pageLoadStrategy":"normal","platformName":"linux","proxy":{},"setWindowRect":true,"strictFileInteractability":false,"timeouts":{"implicit":0,"pageLoad":300000,"script":30000},"unhandledPromptBehavior":"dismiss and notify","webauthn:extension:credBlob":true,"webauthn:extension:largeBlob":true,"webauthn:extension:minPinLength":true,"webauthn:extension:prf":true,"webauthn:virtualAuthenticators":true},"sessionId":"15600463268ae0c481d365a96dcb1188"}} | headers=HTTPHeaderDict({'Content-Length': '848', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
DEBUG:selenium.webdriver.remote.remote_connection:GET http://localhost:47285/session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype {}
DEBUG:urllib3.connectionpool:http://localhost:47285 "GET /session/15600463268ae0c481d365a96dcb1188/fedcm/getdialogtype HTTP/1.1" 404 0
DEBUG:selenium.webdriver.remote.remote_connection:Remote response: status=404 | data={"value":{"error":"no such alert","message":"no such alert\n  (Session info: chrome=135.0.7049.42)","stacktrace":"#0 0x55f44ca0ce6a \u003Cunknown>\n#1 0x55f44c4be493 \u003Cunknown>\n#2 0x55f44c51856a \u003Cunknown>\n#3 0x55f44c535752 \u003Cunknown>\n#4 0x55f44c55b7b5 \u003Cunknown>\n#5 0x55f44c535523 \u003Cunknown>\n#6 0x55f44c501ef3 \u003Cunknown>\n#7 0x55f44c502b51 \u003Cunknown>\n#8 0x55f44c9d1d2b \u003Cunknown>\n#9 0x55f44c9d5c01 \u003Cunknown>\n#10 0x55f44c9b9512 \u003Cunknown>\n#11 0x55f44c9d6774 \u003Cunknown>\n#12 0x55f44c99d90f \u003Cunknown>\n#13 0x55f44c9fafb8 \u003Cunknown>\n#14 0x55f44c9fb196 \u003Cunknown>\n#15 0x55f44ca0bcb6 \u003Cunknown>\n#16 0x7f2df95381f5 \u003Cunknown>\n"}} | headers=HTTPHeaderDict({'Content-Length': '702', 'Content-Type': 'application/json; charset=utf-8', 'cache-control': 'no-cache'})
DEBUG:selenium.webdriver.remote.remote_connection:Finished Request
Traceback (most recent call last):
  File "/home/cgoldberg617/code/selenium/py/sel.py", line 9, in <module>
    dialog = driver.fedcm_dialog()
  File "/home/cgoldberg617/code/selenium/py/selenium/webdriver/remote/webdriver.py", line 1532, in fedcm_dialog
    return wait.until(lambda _: _check_fedcm())
           ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/cgoldberg617/code/selenium/py/selenium/webdriver/support/wait.py", line 146, in until
    raise TimeoutException(message, screen, stacktrace)
selenium.common.exceptions.TimeoutException: Message:

ℹ️ Last known working version: N/A

The text was updated successfully, but these errors were encountered:

selenium-ci · 2025-04-06T05:52:40Z

@cgoldberg, thank you for creating this issue. We will troubleshoot it as soon as we can.

Selenium Triage Team: remember to follow the Triage Guide

navin772 · 2025-04-06T10:06:10Z

Hi @cgoldberg, I see that the tests pass fine in macOS. In Linux, I was able to use FedCM functionality but Bazel was having some issues with all the tests (was getting the --user-data-dir error which I need to fix), so couldn't run the bazel tests for FedCM.

from selenium import webdriver
driver = webdriver.Chrome()
dialog = driver.fedcm_dialog()

This is not the right way to use the FedCM functionality, FedCM has some dependencies.

For quickly testing out FedCM, you can start a HTTP server in this dir - https://github.com/SeleniumHQ/selenium/tree/trunk/common/src/web/fedcm using python -m http.server.
And then change the relative value of config.json in fedcm.html to:
let configURL = http://localhost:8000/config.json; // change with your port

Now you can test FedCM related functionality by pointing your tests to http://localhost:8000/fedcm.html like this:

from selenium import webdriver
import time

driver = webdriver.Chrome()

driver.get("http://localhost:8000/fedcm.html")
driver.execute_script("triggerFedCm();"). # this needs to be called for fedcm_dialog() to work
dialog = driver.fedcm_dialog()

time.sleep(1)
driver.quit()

Using the above script you can see that the FedCM dialog box is visible.

I am not sure why only those 2 tests are failing in the CI for Linux only, other tests also use the exact same pattern for calling the FedCM dialog box and they pass. I tried increasing the timeout to 10 here but it still fails!

cgoldberg · 2025-04-06T16:45:04Z

@navin772 thanks for the information... I will try using FedCM locally using your instructions and report back with the results.

FWIW, I get that same --user-data-dir error running ANY Chrome/Edge tests with bazel. I haven't been able to run any tests with bazel since Chrome 134 was released. I am only able to run tests with PyTest directly (where they run fine). If you can figure out how to fix this, that would be amazing... I am totally stumped. (Firefox and WebKitGTK work fine with bazel).

cgoldberg · 2025-04-06T17:49:36Z

@navin772 I just tried again, and the issue still occurs when running your code. It loads http://localhost:8000/fedcm.html but the FedCM dialog never opens. I even tried with driver.fedcm_dialog(timeout=60), so I don't think it's just a timing issue.

navin772 · 2025-04-06T18:04:10Z

@cgoldberg, just confirming, did you change this value here to:
let configURL = http://localhost:8000/config.json;

Also, in which directory did you start the http server?

Can you also go to chrome://flags -> search for fedcm and enable all of those and try again?

For me, in my linux device, I am easily able to trigger the FedCM dialog box.

cgoldberg · 2025-04-06T18:08:18Z

@navin772 very sorry... I just tried again and I had it configured incorrectly. The dialog DOES eventually open, it just takes a while. So this looks like a timing issue and bumping the timeout up in the tests will likely fix it.

cgoldberg · 2025-04-07T00:07:59Z

@navin772 hah! I figured it out and got all the tests passing locally without raising the timeout. See #15583

navin772 · 2025-04-07T02:05:15Z

Thanks @cgoldberg, this looks good!

cgoldberg added A-needs-triaging A Selenium member will evaluate this soon! C-py Python Bindings I-defect Something is not working as intended labels Apr 6, 2025

github-actions bot added D-chrome OS-linux labels Apr 6, 2025

cgoldberg mentioned this issue Apr 6, 2025

[py] Fix test for w3c touch pointer properties #15580

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cgoldberg removed the A-needs-triaging A Selenium member will evaluate this soon! label Apr 6, 2025

cgoldberg mentioned this issue Apr 7, 2025

[py] Fix FedCM tests leaking state #15583

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cgoldberg closed this as completed in #15583 Apr 7, 2025

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[🐛 Bug]: [py] FedCM dialog not opening #15581

[🐛 Bug]: [py] FedCM dialog not opening #15581

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[🐛 Bug]: [py] FedCM dialog not opening #15581

[🐛 Bug]: [py] FedCM dialog not opening #15581

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