Getting null body sometimes in cycleDirectionSettings

[eyalroz]

On some calls to cycleDirectionSettings() - which I can't yet characterize, the body:

document.getElementById("messagepane").contentDocument.body

... is null. Perhaps we're acting before the document is loaded? Perhaps on something that's not really a document? Perhaps this has to do with repeated keypresses, or tab switches? I don't know.

We'll resolve this - more or less - by checking explicitly and logging the document URL.

[eyalroz]

Resolved for TB 115 and later, at least, via issue #97 .