I thnk this is happening only after latest update: 52.0
On https://www.instagram.com/instagram/ for example, clicking on images opens links that look like: https://www.instagram.com/p/BRtAed3gusO ... =instagram
Clicking on it, window with image and comment doesnt load, all I get is static icon of what is supposed to be animated loading circle: http://image.prntscr.com/image/86229363 ... 94073a.png
Removing "?taken-by=instagram" part of the link works as expected. Also right click on images and opening in new tab or new window works fine, just direct left click causes problems.
Edit:
After some testing, this happens only when I am logged in, and only on one account, if I log in with different account popup with image works fine. Same thing happens in Opera browser (only difference is that in Opera loading icon is animated), so I am taking this to Instagram support.