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 section of the updated explainer. Chrome's highly speculative and aspirational time frame is origin trial in M-86 and broader availability in M-89.