Problem with starting mp4 player

[JakubMaz]

What is your Scenario?

I would like to run a player on the site that downloads mp4

What is the Current behavior?

Mp 4 downloads, but it takes a long time, much more than without testCafe.
This has resulted in the fact that it cannot be tested.
Normally the request requires ~100ms.

With testcafe it takes ~25s.

What is the Expected behavior?

Downloading mp4 through the player takes a normal amount of time

What is the public URL of the test page? (attach your complete example)

https://www.livereacting.com/tools/mp4-player

What is your TestCafe test code?

import { RequestLogger, Selector, t } from "testcafe";

const loggerMp4 = RequestLogger({ url: 'https://test-videos.co.uk/vids/bigbuckbunny/mp4/h264/1080/Big_Buck_Bunny_1080_10s_30MB.mp4', method: 'get' }, {
    logResponseHeaders: true,
    logResponseBody: true,
    logRequestHeaders: true,
    logRequestBody: true,
});

fixture`test player mp4`
    .page('https://www.livereacting.com/tools/mp4-player');

test('load player', async () => {
    await t.addRequestHooks(loggerMp4);
    await t.click(Selector('#play-button'));
    await t.expect(loggerMp4.contains(record => record.response.statusCode === 200)).ok({ timeout: 10_000 });
});

TestCafe version

3.7.0

Command-line arguments

testcafe chrome tests/test.js --disable-native-automation

Platform(s) and version(s)

chrome, edge

[PavelMor25]

Hello @JakubMaz,

I couldn't reproduce the issue based on the scenario you described. The video takes slightly longer to load compared to running without TestCafe, but it's not as delayed as you mentioned.

Without Testcafe:

Testcafe Native Automation mode:

Testcafe Proxy mode:

Could you please clarify if you have tried running it in Native Automation mode? Additionally, could you share your operating system and Node.js version?

[JakubMaz]

@PavelMor25 I'm runing testcafe with flag --disable-native-automation. On Native Automation mode it works.
My system: Windows 11 Pro 22H2.
My node: 20.18.0