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fix parent path traversal #1

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fix parent path traversal #1

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3 changes: 3 additions & 0 deletions es6.js
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,9 @@ define([
// leaving the slash in the result. If there is no slash in the path - the path
// is just a file name, it will return `undefined`.
function parentDir (path) {
if (path[path.length - 1] === '/') {
path = path.substring(0, path.length - 1)
}
var lastSlash = path.lastIndexOf('/');
return lastSlash > 0 ? path.substring(0, lastSlash + 1) : undefined;
}
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