Autosaves mindmaps on Text2Mindmap
This is a script that allows for autosaving on text2mindmap.com. It adds a dialog to the top left corner of the page and autosaves your mindmaps.
Note that the mindmap needs to have already been saved (as a file), in order to be autosaved. If it has not been saved yet, a message of Auto N/A will appear in the dialog space, as per indicated by the brackets.
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This script is quite untested... there may be issues.