When a page is opened from outside ...

[johnwcowan]

... and Lagrange is not running, the new Lagrange window is in front.

But if Lagrange is already running, it opens in a new tab (good) but the window is not brought to the front, so I don't notice that the page has been opened (bad).

Fix: always front the page in this situation.

[skyjake]

Which OS does this apply to? SDL's behavior in this area is quite platform-dependent...

[johnwcowan]

I've only used Lagrange on Windows, but it seems to me the behavior should be uniform across all platforms: they all have the idea of passing an URL to a browser that can handle it depending on the URL type, so however that happens the main window needs to be surfaced. But I may not know what I am talking about.

[skyjake]

You are right, that is the intended behavior on all platforms. I meant that the native APIs for this have different quirks depending on platform, and while SDL does a good job of hiding any differences, some workarounds may have to be applied manually.