Fix #5562: Update blocked OpenStreetMap tile server URL

MuraveyApp · MuraveyApp · commit 15bc7c0f1ecb · 2026-04-10T20:30:52.000+09:00
diff --git a/plotly/io/_html.py b/plotly/io/_html.py
@@ -340,7 +340,7 @@ def to_html(
     if full_html:
         return """\
 <html>
-<head><meta charset="utf-8" /></head>
+<head><meta charset="utf-8" /><meta name="referrer" content="no-referrer-when-downgrade" /></head>
 <body>
     {div}
 </body>
