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evercookie
Produces persistent, respawning "super" cookies in a browser, abusing over a dozen techniques. Its goal is to identify users after they've removed standard cookies and other privacy data such as Flash cookies (LSOs), HTML5 storage, SilverLight storage, and others.
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Sure, as Sevetarion said earlier "There is no actual cooke, it's just a metaphor". In contrast to "fingerprinting" a user's unique device configuration (as the rest of this demo does), anti-tracking folks use the term "cookie" broadly to refer to various ways sites can store unique values to be retrieved later. This usage grew out of Samy Kamkar's awesome "Evercookie" work in 2010 (later aka "supercookie") https://samy.pl/evercookie/