Thank you for this game. I like that you included a lot of sailing terms (not that I know them all) - it fleshes out the atmosphere of the game.
"no account and no install" <== sounds like what you would say to people when marketing a web app. For web games this is the standard (and the expectation). No need to mention it.
It would be nice to be able to see from the world map what is in the hold - pointerover the asset icon would open a tooltip. As it is now the player is required to memorise the graphics which does not sound too difficult but it is one of all the things that needs to be learned when starting to play the game for the first time.
Clicking on one of the icons while in the port resulted in losing that cargo. That was disappointing. It's better to open a warning window and ask for confirmation.
It's nice that you include a statistics screen at the end:
Good luck!