Well, i tried exporting it because i wanted to try it in another browser.
In application preferences another browser could be selected, but for some reason construct always ended up opening firefox (the latest version).
I don't know if it was a bug. When the exported project was opens the bordered box in which the game was supposed to be was empty. This did not happen in the older versions of Construct I tried.
I will try making a new application and export it. If it does not work I'll report it.