Fix X-Origin-Content-Length header value when SVG is sanitized or minified

processing_handler.go

@@ -406,12 +406,10 @@ func handleProcessing(reqID string, rw http.ResponseWriter, r *http.Request) {
 			sanitized, svgErr := svg.Sanitize(originData)
 			checkErr(ctx, "svg_processing", svgErr)
 
-			// Since we'll replace origin data, it's better to close it to return
-			// it's buffer to the pool
-			originData.Close()
-
-			originData = sanitized
+			defer sanitized.Close()
 
+			respondWithImage(reqID, r, rw, statusCode, sanitized, po, imageURL, originData)
+			return
 		}
 
 		respondWithImage(reqID, r, rw, statusCode, originData, po, imageURL, originData)