Page not found (404)

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

1. admin/
2. topics/ [name='topics']
3. topics/<slug:slug>.html [name='topic']
4. index/ [name='index']
5. index/<slug:slug>.html [name='index']
6. courses/<slug:slug>/<slug:chapter>.html [name='chapter']
7. courses/<slug:slug>.html [name='courses']
8. courses/ [name='courses']
9. faqs/ [name='faqs']
10. tags/ [name='tags']
11. tags/<slug:slug>.html [name='tags']
12. videos/ [name='videos']
13. videos/<slug:slug>.html [name='videos']
14. <slug:slug>.html [name='article']

The current path, how-does-the-snapscan-integration-work.html, matched the last one.