Today I had my students practice taking a test in canvas using Respondus Lockdown browser in preparation for next week's final exam. They were instructed to go into the test and see how they could cheat. Someone noticed that the text field box for an essay question has links to dropbox and quizlet available. Students who are taking a test can then click on quizlet and look up definitions of words, etc. They might even be able to access dropbox when taking their tests. I don't even have quizlet enabled as an app for my class! Any suggestions on how to make these external apps go away on a quiz question?