Add support for javascript object notation in allowed JSONP callback
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@ -55,8 +55,11 @@ class JsonResponse extends Response
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if ($callback) {
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// taken from http://www.geekality.net/2011/08/03/valid-javascript-identifier/
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$pattern = '/^[$_\p{L}][$_\p{L}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\x{200C}\x{200D}]*+$/u';
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if (!preg_match($pattern, $callback)) {
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throw new \InvalidArgumentException('The callback name is not valid.');
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$parts = explode('.', $callback);
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foreach ($parts as $part) {
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if (!preg_match($pattern, $part)) {
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throw new \InvalidArgumentException('The callback name is not valid.');
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}
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}
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}
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