>>42954
Read a little and essentially what I wrote here >>42957 with a couple of caveats.
At the end of the 18th century, emperor Joseph II introduced some changes in the tone of enlightenment, toward abolishing serfdom. Revolutionaries wanted it in full, they also demanded constitutionality, and voting rights.
The people of Austria (I mean the original Austrian region, excluding the Slavic and other parts) were divided, the revolutionary population concentrated in Vienna, the countryside largely remained reactionary.
The revolutionaries were also divided into moderates and radicals. The bulk of the moderates were the university youth, whom wanted a university guard, an armed force of their own. The radicals were chiefly the workers, especially in the poorer quarters of the city. They wanted voting rights for everyone (men), while moderates were mostly fine with whatever (also I suspect the university youth also wanted to extend voting rights as wide as it was possible).
This division and different demands was exploited by the court. There were three revolutions. After the first one in March, the chancellor, Metternich was sacked, since he was the symbol of the absolutism, and the university youth was allowed to set up their Academic Legion as they called it, and they were entrusted the keep the peace in Vienna, which meant to keep the radicals quiet. This was an important move, the imperial army was too busy in Italy, where those guys fought for their freedom and independence, and the army was in no position to quench the revolution in Wien. So the court divided the revolutionaries, and based on their different interests, they used one part of them to check the others. As noted before, the Habsburgs used these differences of interests to keep in check the nationalities of their empire too.