|  | @@ -146,6 +146,7 @@ void build_auth_metadata_context(grpc_security_connector *sc,
 | 
	
		
			
				|  |  |      *last_slash = '\0';
 | 
	
		
			
				|  |  |      method_name = gpr_strdup(last_slash + 1);
 | 
	
		
			
				|  |  |    }
 | 
	
		
			
				|  |  | +  if (method_name == NULL) method_name = gpr_strdup("");
 | 
	
		
			
				|  |  |    gpr_asprintf(&service_url, "%s://%s%s",
 | 
	
		
			
				|  |  |                 sc->url_scheme == NULL ? "" : sc->url_scheme,
 | 
	
		
			
				|  |  |                 grpc_mdstr_as_c_string(calld->host), service);
 |