I'm working on the setting page to set the url and fields a widget needs. I used the search widget as a model to follow. The setting page works fine getting the information, however there is one detail I cannot answer and makes the page useless. When I click on the OK button to accept the settings a popup appears with the message "Label Exists", but nothing happens; the getConfig Method is not called, so the config.json is not updated, and on the other hand the page is not closed.
Thanks for the help,