1 files changed, 34 insertions, 0 deletions
diff --git a/addons/hw_drivers/http.py b/addons/hw_drivers/http.py
new file mode 100644
index 00000000..b0ea9bee
--- /dev/null
+++ b/addons/hw_drivers/http.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import http
+
+
+class IoTBoxHttpRequest(http.HttpRequest):
+    def dispatch(self):
+        if self._is_cors_preflight(http.request.endpoint):
+            # Using the PoS in debug mode in v12, the call to '/hw_proxy/handshake' contains the
+            # 'X-Debug-Mode' header, which was removed from 'Access-Control-Allow-Headers' in v13.
+            # When the code of http.py is not checked out to v12 (i.e. in Community), the connection
+            # fails as the header is rejected and none of the devices can be used.
+            headers = {
+                'Access-Control-Max-Age': 60 * 60 * 24,
+                'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept, Authorization, X-Debug-Mode'
+            }
+            return http.Response(status=200, headers=headers)
+        return super(IoTBoxHttpRequest, self).dispatch()
+
+
+class IoTBoxRoot(http.Root):
+    def setup_db(self, httprequest):
+        # No database on the IoT Box
+        pass
+
+    def get_request(self, httprequest):
+        # Override HttpRequestwith IoTBoxHttpRequest
+        if httprequest.mimetype not in ("application/json", "application/json-rpc"):
+            return IoTBoxHttpRequest(httprequest)
+        return super(IoTBoxRoot, self).get_request(httprequest)
+
+http.Root = IoTBoxRoot
+http.root = IoTBoxRoot()