Full page sample - how about suggest using allowedContent = true in this sample?

[Wiktor Walc]

I think that there is a high risk of content being removed in this particular case, where full page mode is enabled.

I think that in full page mode the "source" button is used much more often, which may lead to various tags being pasted, which one cannot anticipate and which cannot be created with CKEditor. So it looks like the right way to go would be not suggest disabling content filtering in this particular mode.