Created
December 14, 2019 04:54
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Use stack overflow to expose RangeError prototype in other context
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>Document</title> | |
| </head> | |
| <body> | |
| <script> | |
| let iframe = document.createElement('iframe') | |
| iframe.setAttribute('sandbox', 'allow-same-origin allow-scripts'); | |
| iframe.style.display = 'none'; | |
| document.body.append(iframe) | |
| iframe.contentWindow.eval('window.foo = () => {}') | |
| function getLimit (depth = 1) { | |
| try { | |
| return getLimit(depth + 1) | |
| } catch (err) { | |
| return depth | |
| } | |
| } | |
| console.log(getLimit()) | |
| let err | |
| function exhaust(depth, cb) { | |
| try { | |
| if (depth > 0) { | |
| exhaust(depth - 1, cb) | |
| } else { | |
| cb() | |
| } | |
| } catch (_err) { | |
| err =_err | |
| } | |
| } | |
| exhaust(getLimit(), iframe.contentWindow.foo) | |
| console.log(err, err instanceof RangeError) | |
| </script> | |
| </body> | |
| </html> |
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