Forum Discussion
Support for positioning a pop-up window on the secondary screen
This references https://bugs.chromium.org/p/chromium/issues/detail?id=137681 In Internet Explorer, Microsoft Edge v44, and Mozilla Firefox, it is possible to open a popup window on the secondary ...
Michael Wasserman provides a comprehensive answer here:
https://github.com/webscreens/window-placement/issues/15#issuecomment-665415786
The current proposal would enable saving and restoring cross-screen window placements without new APIs, but perhaps gated on a new permission. See the saveOpenWindows() and restoreSavedWindows() example in this https://github.com/webscreens/window-placement/blob/master/EXPLAINER.md#support-requests-to-place-web-app-windows-on-a-specific-screen of the updated explainer. Chrome's highly speculative and aspirational https://docs.google.com/spreadsheets/d/1de0ZYDOcafNXXwMcg4EZhT0346QM-QFvZfoD8ZffHeA/edit#gid=272423396 is origin trial in M-86 and broader availability in M-89.