Page not found (404)

Request Method: GET
Request URL: https://www2.ccrb.cuhk.edu.hk/registry/public/453/history/None

Using the URLconf defined in ccrb_ctrs.urls, Django tried these URL patterns, in this order:

  1. ^$ [name='index']
  2. ^admin/
  3. ^users/
  4. ^trials/
  5. ^public/ ^$ [name='trial_list']
  6. ^public/ ^r/(?P<ref_no>[0-9A-Za-z_\-]+)$ [name='trial_detail_redirect']
  7. ^public/ ^(?P<pk>\d+)$ [name='trial_detail']
  8. ^public/ ^(?P<pk>\d+)/history$ [name='history_list']
  9. ^public/ ^(?P<trial>\d+)/history/(?P<pk>\d+)$ [name='history_detail']
  10. ^public/ ^(?P<pk>\d+)/compare$ [name='history_compare']
  11. ^public/ ^(?P<trial>\d+)/documents/(?P<pk>\d+)/download$ [name='document_download']
  12. ^manage/

The current URL, public/453/history/None, didn't match any of these.

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.