使用Python Playwright遇net::ERR_HTTP2_PROTOCOL_ERROR错误求助

API 探路者

2026-7-7

解决Playwright访问Tesla网站出现net::ERR_HTTP2_PROTOCOL_ERROR的问题

可行解决方案：

禁用HTTP/2协议
错误源于HTTP2协议兼容性问题，启动Chromium时添加参数禁用该协议：
```
browser = playwright.chromium.launch(headless=True, args=["--disable-http2"])
```

模拟真实浏览器请求头
网站可能通过请求头识别爬虫，添加符合真实浏览器的User-Agent：

context = browser.new_context(
    user_agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36"
)
page = context.new_page()

调整页面加载等待策略
默认等待load事件易触发超时，换成networkidle等待网络空闲：

page.goto('https://www.tesla.com/de_DE/inventory/new/ms?arrangeby=relevance&range=0', timeout=0, wait_until="networkidle")

修改后的完整代码：

from playwright.sync_api import sync_playwright

def run(playwright):
    browser = playwright.chromium.launch(headless=True, args=["--disable-http2"])
    context = browser.new_context(
        user_agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36"
    )
    page = context.new_page()
    page.goto('https://www.tesla.com/de_DE/inventory/new/ms?arrangeby=relevance&range=0', timeout=0, wait_until="networkidle")
    # 测试：打印页面标题验证访问成功
    print(page.title())
    context.close()
    browser.close()

with sync_playwright() as playwright:
    run(playwright)