[Feature] Add context "platform" option

[zdm]

Hi.

Chrome Emulation.setUserAgentOverride devtools call supports platform option.
Is it possible to add this option to the new context constructor options, in order to have this setting applied automatically to all pages, opened by thus context?

[pavelfeldman]

Could you share more about your use case?

[zdm]

To override userAgent for chromium playwright uses Emulation.setUserAgentOverride call.
https://chromedevtools.github.io/devtools-protocol/tot/Emulation/#method-setUserAgentOverride

This call supports additional platform option, that allows to override navigation.platform. In our case we need to override platform together with the user Agent to keep them consistent.

So, I am propose to add new platform option to context constructor:

const ctx = await browser.newContext({
    userAgent: "Mozilla/5.0 (iPad; CPU OS 11_0 like Mac OS X) AppleWebKit/604.1.34 (KHTML, like Gecko) Version/11.0 Mobile/15A5341f Safari/604.1",
    platform: "iPad",
});

[pavelfeldman]

I understand that, I was curious about your use case that requires it. What is your setup?

[zdm]

We need stealth mode, when we overriding user agent we need to override platform too, because in our case we become detected as bot.

…

On 04.04.2021 23:30, Pavel Feldman wrote: I understand that I was curious about your use case that requires it. What is your setup? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#6070 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAH2MSAH7PBT2E4Y2ZKWUILTHDD77ANCNFSM42LHKFQQ>.

[zdm]

Also, could you, pls, take a look at issue #6026 again?
I found the way to reproduce it.
For me it appears every time, when I run script.
Is it possible to update exports to the new rules? I tested new syntax and it works in lts and latest releases.
Thank you.

[pavelfeldman]

We don't prioritize features for scrapers and spammers - if property decided to detect bots, we respect their choice. At the same time, you can use https://playwright.dev/docs/api/class-chromiumbrowsercontext#chromiumbrowsercontextnewcdpsessionpage to issue arbitrary cdp commands should you choose to.

[ccll]

We don't prioritize features for scrapers and spammers - if property decided to detect bots, we respect their choice

Respect to you for the choice, it's very reasonable.

But the situation may have changed in the last 2 years, we are in the cyber-security business that offer software to check if an URL links to phishing websites, using automated browsers of cause, nowadays we are seeing more and more phishing sites are using bot detection to evade security checks, so beside the traditional benign sites vs. scrapers game, now we have this new kind of malicious sites vs. security guard game.

Maybe time to re-consider the choices?