Question 300741 in Javascript Question posted in
A very good W3school tutorial can be found here.

Javascript detecting whether User on Chrome is logged in

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so when you’re on Chrome you can login to your Google account to save and sync browser data

Is there any way that a site can use Javascript code to detect that? Or even call a library to detect it?

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2

Answers


  1. 0

    No. It would be a massive security/privacy issue.

    (Granted, the web has had those before, but if this were one, it would have been closed by now.)

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  2. 0

    No, like mentioned in the answer here.

    But maybe good to mention that it’s possible the other way around: Your Chrome browser can detect that the 3rd party site (or app) you are visiting supports login with Chrome and could show a Google account sign in prompt.

    enter image description here

    Read here for more details on that feature.
    This prompting feature can be disabled here.

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