Merge branch 'bugfix/http_client_buffer_overread' into 'master'

esp_http_client: Fix buffer overread, update https_request example to use HTTP/1.1

Closes IDFGH-4303 and IDFGH-4288

See merge request espressif/esp-idf!11864

Author: mahavirj

components/esp_http_client/esp_http_client.c

@@ -1027,6 +1027,7 @@ esp_err_t esp_http_client_perform(esp_http_client_handle_t client)
                 }
                 http_dispatch_event(client, HTTP_EVENT_ON_FINISH, NULL, 0);
 
+                client->response->buffer->raw_len = 0;
                 if (!http_should_keep_alive(client->parser)) {
                     ESP_LOGD(TAG, "Close connection");
                     esp_http_client_close(client);

examples/protocols/https_request/main/https_request_example_main.c

@@ -50,7 +50,7 @@
 
 static const char *TAG = "example";
 
-static const char *REQUEST = "GET " WEB_URL " HTTP/1.0\r\n"
+static const char *REQUEST = "GET " WEB_URL " HTTP/1.1\r\n"
     "Host: "WEB_SERVER"\r\n"
     "User-Agent: esp-idf/1.0 esp32\r\n"
     "\r\n";