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For example, if the user supplies the input string "<kitten><#catgifs>", the url returned is "https://example.com?query=<kitten><#catgifs>" which is not a valid URL.
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If the user supplies the input string "#YOLO2018<#catgifs>", the url returned is "https://example.com?query=%3Ckitten%3E%3C%23catgifs%3E" which is a valid URL.
Applicability
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