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Override mimetype for .css files #1360

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Merged
merged 1 commit into from
Apr 16, 2016
Merged

Override mimetype for .css files #1360

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11 changes: 10 additions & 1 deletion notebook/notebookapp.py
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
import io
import json
import logging
import mimetypes
import os
import random
import re
Expand Down Expand Up @@ -1115,7 +1116,14 @@ def init_server_extensions(self):
raise
self.log.warning("Error loading server extension %s", modulename,
exc_info=True)


def init_mime_overrides(self):
# On some Windows machines, an application has registered an incorrect
# mimetype for CSS in the registry. Tornado uses this when serving
# .css files, causing browsers to reject the stylesheet. We know the
# mimetype always needs to be text/css, so we override it here.
mimetypes.add_type('text/css', '.css')

@catch_config_error
def initialize(self, argv=None):
super(NotebookApp, self).initialize(argv)
Expand All @@ -1128,6 +1136,7 @@ def initialize(self, argv=None):
self.init_terminals()
self.init_signal()
self.init_server_extensions()
self.init_mime_overrides()

def cleanup_kernels(self):
"""Shutdown all kernels.
Expand Down