# JavaScript Uitvoering XS Leak {{#include ../../banners/hacktricks-training.md}} ```javascript // Code that will try ${guess} as flag (need rest of the server code app.get("/guessing", function (req, res) { let guess = req.query.guess let page = `

hello2

` res.send(page) }) ``` Hoofblad wat iframes genereer na die vorige `/guessing` bladsy om elke moontlikheid te toets ```html

hello

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