[Bug]: Abort not working correctly

[mostafamdy]

Version

1.45.1

Steps to reproduce

I attempted to block image (.png) and monitor network traffic using Burp Suite Proxy I observed that these requests were still being made, as shown by Burp Suite

Code Used to Abort .png Requests:

page.route("**/*.png", lambda route: route.abort())

Proxy Setup with Burp Suite:

I configured Playwright to use Burp Suite as a proxy with the following parameters:

params = {
    "headless": HEADLESS,
    "args": [
        "--no-sandbox",
        "--disable-setuid-sandbox",
        "--disable-dev-shm-usage",
        "--disable-web-security",
        "--disable-notifications",
    ],
}
b = p.firefox.launch(proxy={"server": "http://127.0.0.1:8080"}, **params)

Expected behavior

.

Actual behavior

.

Additional context

No response

Environment

- Operating System: windows 10
- CPU: [arm64]
- Browser: Firefox
- Python Version: 3.11.9

[mostafamdy]

I tried this code:

def route_handler(route):
    request = route.request
    url = request.url.lower()
    print(url)
    if ".png" in url or ".ico" in url:
        route.abort()
        print('Aborted')

page.route('**/*', route_handler)

some images are successfully blocked and others don't seem to trigger the function. The URLs aren't being printed, although they are visible in both Burp Suite and the browser.

[mostafamdy]

this website do many requests at the same time so may be playwright is vulnerable to race condition?

[mxschmitt]

Would it be possible to share a full reproduction with us? Ideally a script which we can run locally with expected and actual outcome.

[mxschmitt]

Closing as per above. Feel free to re-file with a working reproduction.