Encountered this error while using Selenium with ChromeDriver on Heroku Free dyno.

Error Message

selenium.common.exceptions.WebDriverException: Message: unknown error: session deleted because of page crash
from unknown error: cannot determine loading status
from tab crashed

TL;DR

Added these two arguments for Selenium ChromeOptions solved my problem.

chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--disable-dev-shm-usage')

Detail

  • --disable-dev-shm-usage

    • This will force Chrome to use the /tmp directory instead. This may slow down the execution though since disk will be used instead of memory.

  • "from tab crashed"

    • Relates to Linux attempting to always use /dev/shm for non-executable memory.

References

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