Use local verison switcher on non release builds

dstansby · dstansby · commit 5219372657ae · 2024-01-19T14:05:21.000Z
diff --git a/doc/conf.py b/doc/conf.py
@@ -484,7 +484,11 @@ def js_tag_with_cache_busting(js):
         # the server, but will be used as part of the key for caching by browsers
         # so when we do a new minor release the switcher will update "promptly" on
         # the stable and devdocs.
-        "json_url": f"https://matplotlib.org/devdocs/_static/switcher.json?{SHA}",
+        "json_url": (
+            f"https://matplotlib.org/devdocs/_static/switcher.json?{SHA}"
+            if is_release_build
+            else "_static/switcher.json"
+        ),
         "version_match": (
             # The start version to show. This must be in switcher.json.
             # We either go to 'stable' or to 'devdocs'
