when an opened map page is dragged out (via the option"move to new window")to become a separate window, you cannot drag the map with the mouse inside that page.
in the version of (V0.15.6),when an opened map page is dragged out (via the option"move to new window")to become a separate window, you cannot drag the map with the mouse inside the page.

I've been struggling with this ever since the "new window" functionality came out and it seems to be a tough one.
Leaflet has many built-in references to the window and document globals, which I wish it would have taken as parameters.
The only ways that I'm seeing to support Obsidian's New Window is to either post a fix to upstream Leaflet (receiving window and document as optional params when constructing a map), or to do a regex-replace as part of bundling it with Rollup.
i hope that this web page will help you :Plugin developers: How to update your plugin to support pop-out windows - Announcements - Obsidian Forum
besides,thanks for your effort to develep this plugin! this plugin has became indispensable to me! and l will waitng for the new function to be released! especially in # 88