Docker中使用Playwright Python遇SEC_ERROR_UNKNOWN_ISSUER求助

问题说明 #

运行以下代码时触发SEC_ERROR_UNKNOWN_ISSUER错误：

from playwright.sync_api import sync_playwright
pw = sync_playwright().start()
firefox = pw.firefox.launch(headless=True)
context=firefox.new_context()
page= context.new_page()

page.goto("http://www.uaf.cl/prensa/sanciones_new.aspx")

已尝试在context中设置忽略HTTPS错误但未生效，运行环境为装有update-ca-certificates的Docker容器。

可行解决方案 #

• 正确配置忽略HTTPS错误参数：确保创建context时传入下划线分隔的ignore_https_errors=True参数，修改后代码如下：

from playwright.sync_api import sync_playwright

with sync_playwright() as pw:
    firefox = pw.firefox.launch(headless=True)
    context = firefox.new_context(ignore_https_errors=True)
    page = context.new_page()
    page.goto("http://www.uaf.cl/prensa/sanciones_new.aspx")
    # 执行后续操作
    context.close()
    firefox.close()

• 处理HTTP跳转HTTPS场景：目标网站可能自动从HTTP跳转至HTTPS，此时ignore_https_errors会对跳转后的HTTPS链接生效。
• Docker环境额外参数配置：若上述方法无效，可在启动Firefox时添加命令行参数强制忽略证书错误，结合context参数使用：

firefox = pw.firefox.launch(
    headless=True,
    args=["--ignore-certificate-errors"]
)
context = firefox.new_context(ignore_https_errors=True)

内容的提问来源于stack exchange，提问作者PythonSmellsLikeCheese