This feature is now available in dash==1.14.0 (📣 Dash v1.14.0 Released - Update the Tab's Title, Removing the "Updating..." Messages, Updated DataTable Link Behavior) and is documented in http://dash.plotly.com/external-resources. Look for the title= and update_title= . See the “Update the Document Title Dynamically based off of the URL or Tab” section.
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