Created
August 27, 2015 12:00
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Override document.write to prevent 3rd parties injecting blocking scripts
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title></title> | |
| <script> | |
| (function(Document) { | |
| Document.prototype.write = function(s) { | |
| var allScripts = document.getElementsByTagName('script'), | |
| thisScript = allScripts[allScripts.length-1]; | |
| var writeTarget = document.createElement('div'); | |
| writeTarget.innerHTML = s; | |
| window.onload = requestAnimationFrame(function () { | |
| thisScript.parentElement.insertBefore(writeTarget, thisScript); | |
| }); | |
| } | |
| })(Document) | |
| </script> | |
| </head> | |
| <body> | |
| <div>div 1</div> | |
| <script> | |
| document.write("between 2 divs") | |
| </script> | |
| <div>div2</div> | |
| </body> | |
| </html> |
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A mistake :
})(Document) => })(document)