Hello dev-platform,

I'm currently working on bug 1095236 - that's an e10s bug for us failing
to open any windows if the features string includes dialog=1 (or
dialog=yes).

According to [1], setting dialog=1 makes a popup window that removes the
min/max/restore buttons, and no "command" menu (the icon usually
appearing in the top left which opens the Restore, Move, Size, etc
options). Note that this is only really apparent on Windows, where we
default to having such buttons on popups.

Also according to [1], Gecko is the only web engine to support that feature.

Before I go whole-hog trying to fix bug 1095236, I'm curious to know if
we really want to continue supporting dialog=1 from content, or if it's
safe to just ignore that feature like the other browser engines (which I
think would be the fastest path towards fixing bug 1095236).

Are there any really good arguments to keep supporting it?

-Mike

[1]:
https://developer.mozilla.org/en-US/docs/Web/API/Window/open?redirectlocale=en-US&redirectslug=DOM%2Fwindow.open#Window_functionality_features
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