🚿

Author: codemasher

src/MessageUtil.php

@@ -139,7 +139,7 @@ protected static function call_decompress_func(string $func, string $data):strin
 	public static function setContentLengthHeader(MessageInterface $message):MessageInterface{
 		$bodySize = $message->getBody()->getSize();
 
-		if(!$message->hasHeader('Content-Length') && $bodySize !== null){
+		if(!$message->hasHeader('Content-Length') && $bodySize !== null && $bodySize > 0){
 			$message = $message->withHeader('Content-Length', (string)$bodySize);
 		}
 

tests/HeaderUtilTest.php

@@ -33,6 +33,8 @@ public static function headerDataProvider():array{
 			'arrayvalue'    => [['foo' => ['bar', 'baz']], ['Foo' => 'bar, baz']],
 			'invalid: 2'    => [[2 => 2], []],
 			'invalid: what' => [['what'], []],
+			'empty value'   => [['empty-value' => ''], ['Empty-Value' => '']],
+			'null value'    => [['null-value' => null], ['Null-Value' => '']],
 		];
 	}