4 lines
		
	
	
		
			81 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			4 lines
		
	
	
		
			81 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
module.exports = function ({ http_referrer }) {
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  return http_referrer || null
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}
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