为什么我的“favicon.ico”请求不起作用？

发布于 2024-11-05 13:00:08 字数 929 浏览 0 评论 0原文

我的网站上有一个 favicon.ico。

在 HTML 中，我链接到它的位置...

<link rel="icon" href="/assets/images/layout/favicon.ico" type="image/x-icon" />

我的 .htaccess 中也有这个。

# Redirect /favicon.ico requests
RewriteCond %{REQUEST_URI} !^assets/images/layout/favicon\.ico [NC]
RewriteCond %{REQUEST_URI} ^favicon\.(gif|ico|png|jpe?g)$ [NC]
RewriteRule ^(.*)$ assets/images/layout/favicon.ico [R=301,L]

...将 /favicon.ico 请求重定向到不同的位置。

由于某种原因，每次我在浏览器中请求 favicon.ico 时，我收到 304 Not Modified 响应，其中包含匹配的 Etag，并且显然是一张空白图像，尽管 /assets/images/layout/favicon.ico 确实存在。

Example

我在尝试使用完整路径访问它时遇到了同样的问题。

这是怎么回事？是什么导致了这个304？

原文

I have a favicon.ico on my site.

In the HTML, I link to its location...

<link rel="icon" href="/assets/images/layout/favicon.ico" type="image/x-icon" />

I also have this in my .htaccess.

# Redirect /favicon.ico requests
RewriteCond %{REQUEST_URI} !^assets/images/layout/favicon\.ico [NC]
RewriteCond %{REQUEST_URI} ^favicon\.(gif|ico|png|jpe?g)$ [NC]
RewriteRule ^(.*)$ assets/images/layout/favicon.ico [R=301,L]

...to redirect the /favicon.ico requests to a different location.

For some reason, every time I request favicon.ico in my browser, I get 304 Not Modified response with matching Etags and apparently a blank image, even though /assets/images/layout/favicon.ico does exist.

Example

I get the same issue when trying to access it wil the full path.

What is going on here? What is causing this 304?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

不爱素颜 2024-11-12 13:00:08

首先，我宁愿将此规则放入 .htaccess 中，如下所示：

RewriteRule ^favicon\.(gif|ico|png|jpe?g)$ /assets/images/layout/favicon.ico [L,NC]

然后，如果您的网页中有此内容：

<link rel="icon" href="/favicon.ico" type="image/x-icon" />

/favicon.ico 将内部重定向到 /assets/images/layout/favicon.ico

我已经在 IE、Firefox 和 Chrome 中对此进行了测试，所有 3 个浏览器都显示了此行为，第一次（或清除缓存后）我得到 200 for favicon.ico 但之后所有浏览器都会缓存此图标文件，并且不会向服务器发送另一个请求。通过此设置，我在测试中没有发现任何 304 发生。

我的访问日志：

Chrome

127.0.0.1 - - [05/May/2011:23:58:15 -0400] "GET /favicon.ico HTTP/1.1" 200 1150 "-" "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.24 (KHTML, like Geck
o) Chrome/11.0.696.60 Safari/534.24"

127.0.0.1 - - [06/May/2011:00:05:18 -0400] "GET /favicon.ico HTTP/1.1" 200 1150 "-" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .
NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)"

Firefox

127.0.0.1 - - [06/May/2011:00:07:33 -0400] "GET /favicon.ico HTTP/1.1" 200 1150 "-" "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1"

First of all I would rather put this rule in .htaccess like this:

RewriteRule ^favicon\.(gif|ico|png|jpe?g)$ /assets/images/layout/favicon.ico [L,NC]

Then if you have this in your web page:

<link rel="icon" href="/favicon.ico" type="image/x-icon" />

/favicon.ico will be internally redirected to /assets/images/layout/favicon.ico

I have tested this in IE, Firefox and Chrome and all 3 show this behavior that for the first time (or after clearing cache) I get 200 for favicon.ico but afterwards all browsers cache this icon file and don't bother to send another request to the server. With this setup I didn't find any 304 happening in my testing.

My access log:

Chrome

127.0.0.1 - - [05/May/2011:23:58:15 -0400] "GET /favicon.ico HTTP/1.1" 200 1150 "-" "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.24 (KHTML, like Geck
o) Chrome/11.0.696.60 Safari/534.24"

127.0.0.1 - - [06/May/2011:00:05:18 -0400] "GET /favicon.ico HTTP/1.1" 200 1150 "-" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .
NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)"

Firefox

127.0.0.1 - - [06/May/2011:00:07:33 -0400] "GET /favicon.ico HTTP/1.1" 200 1150 "-" "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1"

回复收藏 0 原文

番薯 2024-11-12 13:00:08

<IfModule mod_rewrite.c>
RewriteRule ^favicon\.ico$ _/img/ico/favicon.ico [L]
RewriteRule ^apple-touch-icon\.png$ _/img/ico/apple-touch-icon.png [L]
RewriteRule ^apple-touch-icon-precomposed\.png$ _/img/ico/apple-touch-icon-precomposed.png [L]
RewriteRule ^apple-touch-icon-57x57-precomposed\.png$ _/img/ico/apple-touch-icon-57x57-precomposed.png [L]
RewriteRule ^apple-touch-icon-72x72-precomposed\.png$ _/img/ico/apple-touch-icon-72x72-precomposed.png [L]
RewriteRule ^apple-touch-icon-144x144-precomposed\.png$ _/img/ico/apple-touch-icon-144x144-precomposed.png [L]
RewriteRule ^apple-touch-icon-114x114-precomposed\.png$ _/img/ico/apple-touch-icon-114x114-precomposed.png [L]

<IfModule mod_rewrite.c>
RewriteRule ^favicon\.ico$ _/img/ico/favicon.ico [L]
RewriteRule ^apple-touch-icon\.png$ _/img/ico/apple-touch-icon.png [L]
RewriteRule ^apple-touch-icon-precomposed\.png$ _/img/ico/apple-touch-icon-precomposed.png [L]
RewriteRule ^apple-touch-icon-57x57-precomposed\.png$ _/img/ico/apple-touch-icon-57x57-precomposed.png [L]
RewriteRule ^apple-touch-icon-72x72-precomposed\.png$ _/img/ico/apple-touch-icon-72x72-precomposed.png [L]
RewriteRule ^apple-touch-icon-144x144-precomposed\.png$ _/img/ico/apple-touch-icon-144x144-precomposed.png [L]
RewriteRule ^apple-touch-icon-114x114-precomposed\.png$ _/img/ico/apple-touch-icon-114x114-precomposed.png [L]

回复收藏 0 原文

~没有更多了~