esp_http_client: Add comment for clearing location field in esp_http_client_prepare
@@ -512,6 +512,12 @@ static esp_err_t esp_http_client_prepare(esp_http_client_handle_t client)
client->process_again = 0;
client->response->data_process = 0;
client->first_line_prepared = false;
+ /**
+ * Clear location field before making a new HTTP request. Location
+ * field should not be cleared in http_on_header* callbacks because
+ * callbacks can be invoked multiple times for same header, and
+ * hence can lead to data corruption.
+ */
if (client->location != NULL) {
free(client->location);
client->location = NULL;
