Tapping on share link under any post opens popup block with text:
Sometimes field's width is not enough for whole link as showed on the picture above. Actual link is:
Tested on iPad with Chrome and Safari browsers.
For main (not Meta) sites like Stack Overflow, Server Fault, Super User etc width of sharing block is enough for link length. On this basis, I have decided that the width of block was initially chosen to show entire link (in partucular
q is used instead of
question). If for another sites width is not enough - it should be increased for consistency. Probably the best solution should be to use uniform short link for all Stack Exchange sites (like