chore(e2e): response body might fail

http/e2e/e2e.go

@@ -274,11 +274,8 @@ func Run(cfg Config) error {
 			return fmt.Errorf("could not do http request: %v", err)
 		}
 
-		respBody, err := io.ReadAll(resp.Body)
+		respBody, errReadRespBody := io.ReadAll(resp.Body)
 		resp.Body.Close()
-		if err != nil {
-			return fmt.Errorf("could not read response body: %v", err)
-		}
 
 		if test.expectedStatusCode != nil {
 			if err := test.expectedStatusCode(resp.StatusCode); err != nil {
@@ -289,6 +286,11 @@ func Run(cfg Config) error {
 		}
 
 		if test.expectedBody != nil {
+			// Same servers might aborting the request before sending the body (E.g. triggering a phase 3 rule with deny action)
+			// Therefore, we check if we properly read the body only if we expect a body to be received.
+			if errReadRespBody != nil {
+				return fmt.Errorf("could not read response body: %v", err)
+			}
 			code, err := strconv.Atoi(resp.Header.Get("Content-Length"))
 			if err != nil {
 				return fmt.Errorf("could not convert content-length header to int: %v", err)