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function SaferHTML(templateData) { | |
var s = templateData[0]; | |
for (var i = 1; i < arguments.length; i++) { | |
var arg = String(arguments[i]); | |
// Escape special characters in the substitution. | |
s += arg.replace(/&/g, "&") | |
.replace(/</g, "<") | |
.replace(/>/g, ">"); | |
// Don't escape special characters in the template. | |
s += templateData[i]; | |
} | |
return s; | |
} | |
var bonk = { | |
sender: "Hacker Steve <script>alert('xss');</script>" | |
}; | |
console.log(SaferHTML`<p>${bonk.sender} sent you a bonk.</p>`); |
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