Site Isolation

Overview Site Isolation is a security feature in Chrome that offers additional protection against some types of security bugs. It uses Chrome's sandbox to make it harder for untrustworthy websites to access or steal information from your accounts on other websites. Websites are typically not allowed to access each other's data inside the browser, thanks to code that enforces the Same Origin Policy

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Chrome での https://security.googleblog.com/2018/01/todays-cpu-vulnerability-what-you-need.html の対策。