Invalid unicode handling about flask-debugtoolbar HOT 5 CLOSED

Traceback (most recent call last):
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask/app.py", line 1701, in __call__
    return self.wsgi_app(environ, start_response)
  File "/home/cnf/Projects/Kangaroot/kassets/kassets/rev_proxied.py", line 35, in __call__
    return self.app(environ, start_response)
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask/app.py", line 1689, in wsgi_app
    response = self.make_response(self.handle_exception(e))
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask/app.py", line 1687, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask/app.py", line 1362, in full_dispatch_request
    response = self.process_response(response)
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask/app.py", line 1564, in process_response
    response = handler(response)
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask_debugtoolbar/__init__.py", line 171, in process_response
    toolbar_html = self.debug_toolbars[real_request].render_toolbar()
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask_debugtoolbar/toolbar.py", line 74, in render_toolbar
    return template.render(**context)
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/jinja2/environment.py", line 894, in render
    return self.environment.handle_exception(exc_info, True)
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask_debugtoolbar/templates/base.html", line 49, in top-level template code
    {{ panel.content()|safe }}
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask_debugtoolbar/panels/template.py", line 67, in content
    'editable': is_editor_enabled(),
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask_debugtoolbar/panels/__init__.py", line 28, in render
    return template.render(**context)
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/jinja2/environment.py", line 894, in render
    return self.environment.handle_exception(exc_info, True)
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask_debugtoolbar/templates/panels/template.html", line 18, in top-level template code
    <td>{{ v|printable }}</td>
  File "/home/cnf/.virtualenvs/kassets/lib/python2.7/site-packages/flask_debugtoolbar/__init__.py", line 34, in _printable
    return repr(value)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2122' in position 32: ordinal not in range(128)