Jonas Jenwald dc4a6e94f3 Unblock the "load" event when the windows/tabs becomes inactive (bug 1746213)
*This addresses the following case missing from the previous patch:*
The viewer is loaded in an *active* window/tab, and enough time is allowed to pass in order to allow rendering to start. However, if the user then switches to another tab (or another program) *before* rendering has finished, the "load" event also needs to be unblocked.
2021-12-19 10:40:31 +01:00
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