When setting a project to Public from right-click on **Project > Share**:  then click OK:  this window is opened:  After copying the project or file urls, the only option is to click **Cancel**. In fact the action of this button is only to **Close** the dialogue box. Naming this button "**Cancel"** is confusing because the user may think that this cancels the previous action of making the project Public and does not simply mean "Close this dialogue box".