Iranian's have always played baniya-n politics. Their official stance would always be neutral.
Arab role might be unconfirmed, but there are reports of Iranians having something in this conflict.
But what role does Iran, a Shia-Muslim majority country like Azerbaijan, which neighbours both countries, have? Experts with a close eye on the conflict think Iran is secretly backing Armenia, a Christian-majority country.
Iran seems to be quietly backing Armenia in the conflict.
www.trtworld.com
The protesting groups demanded Iranian authorities close the country’s border with Armenia and the Norduz border gate, through which military equipment have reportedly been transferred to Armenia.
Ethnic Azerbaijanis, who constitute a large portion of the population in northwestern Iranian cities like Ardabil, Tabriz and Urmia, poured onto the...
www.dailysabah.com
Now one could argue these are biased reports. One could argue what "experts", but when some countries are secretly interfering in other countries affairs, its hard to pinpoint with actual hard-proof to make a point/argument. Then, there comes the common sentiment among the public and here one can see the "love" between Iran and their Azerbaijanian brothers. Sure, sample size is way to little to make a generalized statement, but keeping this and the media in mind one could assume who Iran is backing this conflict.