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[Bug]: Playwright Firefox does not catch all requests / responses #30563

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@peonone

Description

@peonone

Version

1.43.1

Steps to reproduce

prepare environment:

npm install [email protected]
npx playwright install firefox

and then run this script

const { firefox } = require("playwright");

(async () => {
    const browser = await firefox.launch({ headless: false });
    const page = await browser.newPage();
    const mainUrl = "https://ridersbylee.com.au/product/r5-baggy-relaxed-jean/R_501558_DC5.html";
    page.on("request", (req) => {
        if (req.url() === mainUrl) {
            console.log("sending request for the main URL");
        }
    });
    page.on("response", (res) => {
        if (res.url() === mainUrl) {
            console.log(`got response for the main URL, status: ${res.status()}`);
        }
    });
    await page.goto(mainUrl);
    await page.waitForSelector("h1");
    await browser.close();
})();

Expected behavior

Expect to see log prints for two requests/responses:

sending request for the main URL
got response for the main URL, status: 429
sending request for the main URL
got response for the main URL, status: 200

Actual behavior

Only logs for the first request/response:
Expect to see logs for two requests/responses:

sending request for the main URL
got response for the main URL, status: 429

Additional context

The website returns a 429 response for the initial navigation request, with some Javascript, once the Javascript execution is finished and receives the successful response for an XHR request it sends, it reloads the page and the website returns a 200 response for the second navigation request, I can see the two requests/responses from the DevTools.

But Playwright does not catch the second request/response.

I tried to debug it with DEBUG=pw:protocol and found the browser didn't send the Network.requestWillBeSent message, it did send Network.responseReceived and Network.requestFinished messages but seems they're discarded as there is no information about the request (related code), so maybe an issue of the Firefox browser patch.

Environment

System:
    OS: macOS 13.1
    CPU: (8) x64 Intel(R) Core(TM) i5-8257U CPU @ 1.40GHz
    Memory: 16.54 MB / 8.00 GB
  Binaries:
    Node: 16.17.0 - /usr/local/bin/node
    Yarn: 1.22.17 - /usr/local/bin/yarn
    npm: 8.15.0 - /usr/local/bin/npm
  Languages:
    Bash: 3.2.57 - /bin/bash
  npmPackages:
    playwright: ^1.43.1 => 1.43.1

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