Apache 浏览器无法缓存SWF文件

我遇到浏览器未缓存SWF文件的问题

我的apache配置中包含以下内容：

 ExpiresByType application/x-shockwave-flash "access plus 2 months"

我可以看到SWF原始请求返回的头如下所示（expires头看起来设置正确）：

请求：

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie  auth_token=

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:42 GMT
Content-Type    application/x-shockwave-flash

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie   auth_token=
Range   bytes=0-
If-Range    "49384-4784d7c3c8ac0"

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:45 GMT
Content-Range   bytes 0-299907/299908
Content-Type    application/x-shockwave-flash

响应：

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie  auth_token=

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:42 GMT
Content-Type    application/x-shockwave-flash

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie   auth_token=
Range   bytes=0-
If-Range    "49384-4784d7c3c8ac0"

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:45 GMT
Content-Range   bytes 0-299907/299908
Content-Type    application/x-shockwave-flash

但是，在随后加载页面时，浏览器仍会发送SWF的If范围请求，如下所示：

请求：

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie  auth_token=

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:42 GMT
Content-Type    application/x-shockwave-flash

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie   auth_token=
Range   bytes=0-
If-Range    "49384-4784d7c3c8ac0"

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:45 GMT
Content-Range   bytes 0-299907/299908
Content-Type    application/x-shockwave-flash

响应：

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie  auth_token=

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:42 GMT
Content-Type    application/x-shockwave-flash

User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5
Accept  HTTP Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Cookie   auth_token=
Range   bytes=0-
If-Range    "49384-4784d7c3c8ac0"

Server  Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.5 with Suhosin-Patch proxy_html/3.0.0 mod_ssl/2.2.8 OpenSSL/0.9.8g Phusion_Passenger/2.2.5
Last-Modified   Sat, 14 Nov 2009 04:48:19 GMT
Etag    "49384-4784d7c3c8ac0"
Accept-Ranges   bytes
Content-Length  299908
Cache-Control   max-age=5184000
Expires Fri, 15 Jan 2010 20:25:45 GMT
Content-Range   bytes 0-299907/299908
Content-Type    application/x-shockwave-flash

这些后续请求似乎在If-Range报头中发送Etag，并获得206个包含整个内容的响应。我已经尝试将apache设置为取消设置Accept Ranges头文件和ETag，但在这两种情况下，浏览器都会重新请求该文件

以前有没有人见过类似的情况，并且知道如何将SWF缓存

---

谢谢

您可以添加一个调用flash文件的示例URL吗？是否有任何其他参数可能会强制刷新？我正在使用SWFObject嵌入swf，如下所示：SWFObject.embeddeswf（“/webcam.swf”，“#flash”，“800”，“300”，“9.0.0”，“/expressInstall.swf”，flashvars，params，attributes）；firebug中的请求URL没有任何参数-这是我在查看firefox中的缓存时发现的另一件事-显然，firefox认为缓存中对象的大小是0字节-这一定是造成问题的原因，但为什么我会认为大小是0字节？关键字：数据大小：0字节获取计数：5上次修改：2009-11-16 16 16:50:14过期：2010-01-15 16:50:14应为“访问加2个月”，而不是月份