According to "A Dictionary of Basic Japanese Grammar", ので cannot be used in
sentences that contains a request in the main clause.

However, in many phrases at sites or another grammar books I have found cases
like this:

ちょっと気分が悪いので、早く帰らせてください。

After that, I made a quick search on the Internet and noticed that the
combination of " ~ので, ~てください" is not uncommon at all, although I have not
reached at any conclusion about the reason. Is this gramitical rule simply
ignored by most Japaneses, or there are special cases when the use of the
pattern " ~ので, ~てください" is valid?
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2013-03-13T04:37:03.487
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2013-03-13T04:37:03.487
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question
syntax conjunctions
About the relationship between 「ので」 and 「~てください」: