bugfix(core): Fixing body issue

changelog.txt

+= 1.0.4 - 2020-12-09 =
+* Fixed issue with body
+
 = 1.0.3 - 2020-04-10 =
-* Increased Curl connection timeout 
+* Increased Curl connection timeout
 
 = 1.0.2 - 2019-12-06 =
 * Fixed issue with headers

src/Curl/CurlClient.php

@@ -91,7 +91,7 @@ class CurlClient implements HttpClient {
 				return $len;
 			}
 		];
-		if ( $method !== "GET" ) {
+		if ( ! empty( $body ) ) {
 			$options[ \CURLOPT_POSTFIELDS ] = $body;
 		}
 		\curl_setopt_array( $this->curlResource, $options );