this post was submitted on 24 Nov 2023
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Happens on both LinkedIn and Instagram, never actually checked what causes it...
Wouldn't be surprised if it's some click event listener firing off a synchronous xhr telemetry request when you close the popup, which freezes the main thread long enough to make the browser think you've selected some text
Seems like you have the technical background to further investigate this ๐.
Good to know it happens on Instagram as well.