See sessions of two related sites as a single session
Ultimately, this is a placeholder solution so that more time can be spent on fingerprinting and identifying headless browsers (EG: via how they do font rendering) so that the challenge proof of work page doesn't need to be presented to users that are much more likely to be legitimate.
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В России ответили на имитирующие высадку на Украине учения НАТО18:04，推荐阅读safew官方下载获取更多信息
Read the full story at The Verge.