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A comment on Cryptic Rumblings Ahead of First 2020 Patch Tuesday. Parent comment

Re:Cryptic Rumblings Ahead of First 2020 Patch Tuesday by ikeboy on Tuesday January 14, 2020 @12:15AM (#22042054)
Just load a hidden image from a subdomain, silently fails if on an unaffected platform.
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Re:Cryptic Rumblings Ahead of First 2020 Patch Tuesday by Thorrez on Tuesday January 14, 2020 @01:19AM (#22042327)
And you could also avoid even creating the iframe if the User Agent isn't Windows.
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