1

I have a 2013 App / Add-in deployed in two places. The parent site app deploy looks good and inherits the Master Page and CSS.

http://app-98619708df59c5.testapps.com/sites/testapp/AppURL/Pages/Default.aspx

But when I deploy that same app to a Subsite,

http://app-98619708df59c5.testapps.com/sites/testapp/AppURL/subsite//Pages/Default.aspx

..no CSS is loaded and the console throws the error:

**SEC7113: CSS was ignored due to mime type mismatch**

Any ideas on what's happening?

3
  • Did you try in multiple browsers?For troubleshooting try in chrome if you haven't done yet
    – Unnie
    Mar 8, 2016 at 22:16
  • same issue in Chrome, similar error "Resource interpreted as Stylesheet but transferred with MIME type text/html:" Mar 8, 2016 at 23:24
  • maybe use fiddler or chrome's network tracing feature to check the http request/response for the css file?
    – Paul Lucas
    Mar 11, 2016 at 6:14

2 Answers 2

0

What's the CSS URL? If it's relative, the subsite might be trying to hit an invalid URL, causing an error and thus the browser is unable to interpret the response into a valid CSS file.

Check the http traffic with the Network tab or a tool like Fiddler.

0

From this thread at Technet Forums:

The URL of the server's domain contained an underscore ex : (http://cont_oso/) by changing it to a hypen ex : (http://cont-oso/) the problem was solved ! (also needed to change the name in the bindings)

If your subsite has any non-alphanumeric chars in URL, it might be useful to check.

6
  • Also, I wonder if double slash in question was a typo? > subsite//Pages Mar 15, 2016 at 16:13
  • the double slash was a typo ha. But there are no underscores or alphanumeric characters in the URL Mar 15, 2016 at 21:07
  • Ok, guess I'll leave this answer for future googlers. Did you have a chance to setup Fiddler and see the MIME code in actual response for css file? Mar 15, 2016 at 21:20
  • App.css in Fiddler is getting a 304 Result. But I'm unsure where to look for MIME within a response Mar 15, 2016 at 21:27
  • Like i.imgur.com/vrplxvM.png. Does it give 304 even when app is deployed to root? Also, could you clear browser cache and test both cases? Mar 15, 2016 at 21:51

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.