私は答えを見つけました - それは一見したように見えるものとはまったく異なります.
RewriteLogを有効にして、問題を特定しました。元の条件/ルールを使用して mysite.com.au/test を使用すると、ログに次のように表示されます。
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/test -> test
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.+)$' to uri 'test'
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/test -> test
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.+)$' to uri 'test'
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/test -> test
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.*)$' to uri 'test'
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (2) [perdir /home/website/public_html/] rewrite 'test' -> 'http://www.mysite.com.au/test'
10.1.1.1 - - [11/Feb/2013:11:37:50 +1100] [mysite.com.au/sid#b81d24f8][rid#b847d100/initial] (2) [perdir /home/website/public_html/] explicitly forcing redirect with http://www.mysite.com.au/test
ただし、mysite.com.au に対してのみ実行すると、次のように表示されます。
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/ ->
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.+)$' to uri ''
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/ ->
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.+)$' to uri ''
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/ ->
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.*)$' to uri ''
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (2) [perdir /home/website/public_html/] rewrite '' -> '://www.mysite.com.au/'
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (3) [perdir /home/website/public_html/] add per-dir prefix: ://www.mysite.com.au/ -> /home/website/public_html/://www.mysite.com.au/
10.1.1.1 - - [11/Feb/2013:11:38:16 +1100] [mysite.com.au/sid#b81d24f8][rid#b845bc18/initial] (2) [perdir /home/website/public_html/] explicitly forcing redirect with http:/.makeitmine.com.au/home/website/public_html/://www.mysite.com.au/
設定しようとしている環境変数 (SSL のオン/オフ) が設定されていないことに注意してください。そのため、http/https プレフィックスが表示されず、相対内部パスであると想定されています!
環境変数を設定しようとしているときは、次のコードを使用します。
RewriteCond %{HTTPS} =on
RewriteRule ^(.+)$ - [env=ps:https]
RewriteCond %{HTTPS} !=on
RewriteRule ^(.+)$ - [env=ps:http]
^(.+)$ の RegEx は最小 1 文字を想定していますが、これは一致しません! 次のように変更しました。
RewriteCond %{HTTPS} =on
RewriteRule ^(.*)$ - [env=ps:https]
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ - [env=ps:http]
そして、0 文字でも一致するようになりました。
ご協力いただきありがとうございます。問題は解決しました:)
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/ ->
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.*)$' to uri ''
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/ ->
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.*)$' to uri ''
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (3) [perdir /home/website/public_html/] strip per-dir prefix: /home/website/public_html/ ->
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (3) [perdir /home/website/public_html/] applying pattern '^(.*)$' to uri ''
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (2) [perdir /home/website/public_html/] rewrite '' -> 'http://www.mysite.com.au/'
10.1.1.1 - - [11/Feb/2013:11:44:57 +1100] [mysite.com.au/sid#b81d24f8][rid#b8478208/initial] (2) [perdir /home/website/public_html/] explicitly forcing redirect with http://www.mysite.com.au/