Comment 36 for bug 1430828

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Michał Sawicz (saviq) wrote : Re: [Bug 1430828] Re: scopes dont load pictures

> The related issue where local content is not provided under these
> conditions seems a different problem that should not occur. It may be
> worth investigating how that is tied in here.

It is tied in by the fact that Qt has a hard limit as to how many
requests it processes, and if all are busy because of a network issue,
local files won't be loaded.

There's a fix¹ in Qt 5.5 from Albert, but we will probably backport a
bigger patchset² to allow our image providers to implement threading as
they wish. This is tracked by bug #1439263.

¹ https://codereview.qt-project.org/#/c/109756/
² https://codereview.qt-project.org/#/c/108540/