Tell us what’s happening:
Failed test:
helmet.ieNoOpen() middleware should be mounted correctly
Your code so far
app.use(helmet.ieNoOpen());
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0
.
Challenge: Prevent IE from Opening Untrusted HTML with helmet.ieNoOpen()
Link to the challenge: