Test whether url is expanded to the full title (it works fine in the preview - but what happens with the actual post)?

https://math.stackexchange.com/q/2691441/290189

https://math.stackexchange.com/q/2691441

https://math.stackexchange.com/questions/2691441/is-the-function-from-the-coefficients-of-a-monic-cubic-polynomial-to-its-least-r

https://math.stackexchange.com/questions/2691441

http://math.stackexchange.com/q/2691441/290189

http://math.stackexchange.com/q/2691441

http://math.stackexchange.com/questions/2691441/is-the-function-from-the-coefficients-of-a-monic-cubic-polynomial-to-its-least-r

http://math.stackexchange.com/questions/2691441