Redirecting old document's urls to new website

Note: works only on the production website since Redirect(Match) accepts
only absolute url.

content/static/.htaccess

+RedirectMatch permanent "^/(IMG|Documents)/(.*)$" "/attachments/spip/$1/$2"

pelicanconf.py

@@ -9,10 +9,11 @@ SITEURL = ''
 
 PATH = 'content'
 
-STATIC_PATHS = ['static/robots.txt', 'static/spip.php', 'job_offers']
+STATIC_PATHS = ['static/robots.txt', 'static/spip.php', 'static/.htaccess', 'job_offers']
 EXTRA_PATH_METADATA = {
     'static/robots.txt': {'path': 'robots.txt'},
     'static/spip.php': {'path': 'spip.php'},
+    'static/.htaccess': {'path': '.htaccess'},
     }
 READERS = {'html': None}  # prevent html attachments from being processed