title: Impossible to change timeout on Azure function app
body: <p>I have an issue with Azure function app</p>
  
  <p>I have one with an App Service Plan and I cannot go over the default 5 min timeout. I published this function from Visual Studio</p>
  
  <p>Here is my host.json :</p>
  
  <pre><code>{
    "version": "2.0",
    "functionTimeout": "00:10:00"
  }
  </code></pre>
  
  <p>I also tried to create a slot in Azure and publish on it with the Host Key functionTimeout defined but it's not working neither</p>
  
  <p>I am a bit lost as I tried all solutions found here or on internet</p>
  
  <p>Thanks a lot
  Matthieu</p>