[Question] How to turn off log errors generated by interception

[jw-star]

async def no_static(route, req):
    if req.resource_type in {"image", "media", "font"}:
        try:
            await route.fulfill(status=404, content_type="text/plain", body="not found!")
        except:
            pass
    else:
        await  route.continue_()

future: <Task finished name='Task-320' coro=<Channel.send() done, defined at C:\Users\jiawei\AppData\Local\Programs\Python\Python310\lib\site-packages\playwright\_impl\_connection.py:38> exception=Error('Route is already handled!')>
Traceback (most recent call last):
  File "C:\Users\jiawei\AppData\Local\Programs\Python\Python310\lib\site-packages\playwright\_impl\_connection.py", line 39, in send
    return await self.inner_send(method, params, False)
  File "C:\Users\jiawei\AppData\Local\Programs\Python\Python310\lib\site-packages\playwright\_impl\_connection.py", line 63, in inner_send
    result = next(iter(done)).result()
playwright._impl._api_types.Error: Route is already handled!

[mxschmitt]

Could you provide us a full example of your code? I tried the following which was working fine for me:

import asyncio
from playwright.async_api import async_playwright

async def no_static(route, req):
    if req.resource_type in {"image", "media", "font"}:
        try:
            await route.fulfill(status=404, content_type="text/plain", body="not found!")
        except:
            pass
    else:
        await  route.continue_()

async def main():
    async with async_playwright() as p:
        browser = await p.chromium.launch(headless=False)
        page = await browser.new_page()
        await page.route("**/*", no_static)
        await page.goto('http://microsoft.com/')
        await page.screenshot(path=f'example.png')
        await browser.close()

asyncio.run(main())

Make sure that you only call a single time fulfill/continue/abort. Otherwise "Route is already handled! gets thrown.

[BruceLee569]

Could you provide us a full example of your code? I tried the following which was working fine for me:

import asyncio
from playwright.async_api import async_playwright

async def no_static(route, req):
    if req.resource_type in {"image", "media", "font"}:
        try:
            await route.fulfill(status=404, content_type="text/plain", body="not found!")
        except:
            pass
    else:
        await  route.continue_()

async def main():
    async with async_playwright() as p:
        browser = await p.chromium.launch(headless=False)
        page = await browser.new_page()
        await page.route("**/*", no_static)
        await page.goto('http://microsoft.com/')
        await page.screenshot(path=f'example.png')
        await browser.close()

asyncio.run(main())

Make sure that you only call a single time fulfill/continue/abort. Otherwise "Route is already handled! gets thrown.

I also encountered this problem, calling function context.route() will throw this exception !

import asyncio
from playwright.async_api import async_playwright


async def no_static(route, req):
    if req.resource_type in {"image", "media", "font"}:
        try:
            await route.fulfill(status=404, content_type="text/plain", body="not found!")
        except:
            pass
    else:
        await  route.continue_()


async def main():
    async with async_playwright() as p:
        browser = await p.chromium.launch(headless=False)
        context = await browser.new_context()
        await context.route('**/*', no_static)
        page = await context.new_page()
        await page.goto('http://microsoft.com/')
        await browser.close()


asyncio.run(main())

My environment: Windows10, Python 3.8.8, Playwright 1.21.0

[saisua]

Well, I've had this problem too, because I worry applying page.on(event) every single time I open a website might slow down things, even with Cython, so my solution was to check the source code.
The quick fix I did was to change only one line:

In playwright / _impl / _connection
 In line 63 : Channel.inner_send

result = next(iter(done)).result()
to
future = next(iter(done))
if(future.exception() is not None):
____return None
result = future.result()

The exceptions no longer print anything, so in my opinion it was worth it.

[mxschmitt]

In the route handler its not supported to pass coroutines, the functions need to be sync. When modifying your repro @jw-star and removing the async and await, then it works as expected.

[BruceLee569]

In the route handler its not supported to pass coroutines, the functions need to be sync. When modifying your repro @jw-star and removing the async and await, then it works as expected.

from playwright.sync_api import sync_playwright


def no_static(route, req):
    if req.resource_type in {"image", "media", "font"}:
        try:
            route.fulfill(status=404, content_type="text/plain", body="not found!")
        except:
            pass
    else:
        route.continue_()


def main():
    with sync_playwright() as p:
        browser = p.chromium.launch(headless=False)
        context = browser.new_context()
        context.route('**/*', no_static)
        page = context.new_page()
        page.goto('http://microsoft.com/')
        browser.close()


main()

I've tried synchronous code above before my last comment, and the error reporting is the same as asynchronous.

[chujian521]

I have this problem too, this error occurs when using context.route()

[chujian521]

Modify this file : ~Lib\site-packages\playwright\driver\package\lib\server\network.js
Line 250, class Route
Determine if it has been handled. If not, start Handling.

if(!this._handled){
      this._startHandling();
}

I don't know if this is the right thing to do, but it does not report any error!

[BruceLee569]

@mxschmitt Hello, how about re-open this issue?

[rwoll]

v1.23 introduced async route handlers. There is one known, pending issue regarding errant logs, so please follow: #1402