Merge remote-tracking branch 'origin/dev'

Author: Marc-André Rivet

CHANGELOG.md

@@ -2,6 +2,12 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.13.2] - 2020-06-18
+### Fixed
+- [#1305](https://github.com/plotly/dash/issues/1305)
+    - Fix regression that causes crash when `FLASK_ENV` is modified during app execution
+    - Fix regression that caused tests using `_wait_for_callbacks` to fail
+
 ## [1.13.1] - 2020-06-17
 
 ## [1.13.0] - 2020-06-17

dash/dash.py

@@ -1612,7 +1612,4 @@ def verify_url_part(served_part, url_part, part_name):
                 " in production, use a production WSGI server like gunicorn instead.\n"
             )
 
-        if not os.environ.get("FLASK_ENV"):
-            os.environ["FLASK_ENV"] = "development"
-
         self.server.run(host=host, port=port, debug=debug, **flask_run_options)

dash/testing/dash_page.py

@@ -71,7 +71,7 @@ def window_store(self):
         return self.driver.execute_script("return window.store")
 
     def _wait_for_callbacks(self):
-        return not self.window_store or self.redux_state_rqs
+        return (not self.window_store) or self.redux_state_rqs == []
 
     def get_local_storage(self, store_id="local"):
         return self.driver.execute_script(

dash/version.py

@@ -1 +1 @@
-__version__ = "1.13.1"
+__version__ = "1.13.2"