我知道这个问题已被多次询问,但我仍然无法让这个问题起作用。我认为有人根据我的情况提出解决方案会有所帮助。
我有一个random-video.php页面,可以从一个数组中生成一个随机视频,这个工作正常,并且不会在chrome中缓存:
<?php
$array = [
"http://www.mentor-distribution.com/media/Introducing_MConnect.mp4",
"http://www.mentor-distribution.com/media/hs_freedom_chair.mp4",
"http://www.mentor-distribution.com/media/quickstand.mp4",
"http://www.mentor-distribution.com/media/MFlex.mp4"
];
$randomIndex = array_rand($array);
$random = $array[$randomIndex];
?>
<iframe width="320" height="187" frameborder="0" allowfullscreen src="<?php echo htmlspecialchars($random); ?>"></iframe>
&#13;
这是html页面试图每次都显示随机视频,但一旦加载,它就不会更改视频,直到您清除缓存:
<div class="rightsidevid"><iframe width="320" height="187" src="http://mentor-distribution.com/internal/random-video.php" frameborder="0" scrolling="no" allowfullscreen></iframe></div>
&#13;
如果有人可以提供帮助,我们将不胜感激。我确定你可以通过在网址末尾加上一个数字来实现这一目标(例如url?RandomGenNumber),但我不知道该怎么做。
答案 0 :(得分:0)
不确定这是否适用于Chrome;但是,Firefox也存在同样的问题。我在Firefox上尝试了以下工作,它确实有效:
<iframe src="webpage.html?var=xxx" id="article"></iframe>
<script>
var article = document.getElementById("article");
article.contentWindow.location.href = article.src;
</script>
答案 1 :(得分:0)
我通过将以下缓存设置设置为我的.htaccess文件,让它在Chrome中运行。
##
# Expires Headers YSlow START
# Browser caching optimization by Sam Riveros
##
<IfModule mod_headers.c>
# Turn on Expires and set default to 0
ExpiresActive On
ExpiresDefault A0
# Set up caching on media files for 1 year (forever?)
<FilesMatch "\.(ico|pdf|mp4|ogg|webm|svg+xml|ttf|otf|woff|woff2)$">
ExpiresDefault A29030400
Header append Cache-Control "public"
</FilesMatch>
# Set up caching on media files for 1 week
<FilesMatch "\.(jpg|jpeg|png)$">
ExpiresDefault A604800
Header append Cache-Control "public"
</FilesMatch>
# Set up caching for commonly updated static files for 1 week
<FilesMatch "\.(txt|html|js|css)$">
ExpiresDefault A604800
Header append Cache-Control "proxy-revalidate"
</FilesMatch>
# Force no caching for dynamic files
<FilesMatch "\.(php)$">
ExpiresActive Off
Header set Cache-Control "private, no-cache, no-store, proxy-revalidate, no-transform"
Header set Pragma "no-cache"
</FilesMatch>
</IfModule>
<IfModule mod_expires.c>
#Redundancy in case server admin turn mod_headers.c off
ExpiresActive on
ExpiresDefault "access plus 1 month"
#CSS
ExpiresByType text/css "access plus 1 year"
#Data interchange
ExpiresByType application/json "access plus 0 seconds"
ExpiresByType application/xml "access plus 0 seconds"
ExpiresByType text/xml "access plus 0 seconds"
#Favicon
ExpiresByType image/x-icon "access plus 1 year"
#HTML components (HTCs)
ExpiresByType text/x-component "access plus 1 month"
#HTML
ExpiresByType text/html "access plus 1 week"
#Javascript
ExpiresByType application/javascript "access plus 1 year"
#Manifest files
ExpiresByType application/x-web-app-xanifest+json "access plus 0 seconds"
ExpiresByType text/oache-xanifest "access plus 0 seconds"
#Media
ExpiresByType image/jpg "access plus 1 week"
ExpiresByType image/jpeg "access plus 1 week"
ExpiresByType image/png "access plus 1 week"
ExpiresByType audio/ogg "access plus 1 year"
ExpiresByType video/mp4 "access plus 1 year"
ExpiresByType video/ogg "access plus 1 year"
ExpiresByType video/webm "access plus 1 year"
#Web feeds
ExpiresByType application/atom+xml "access plus 1 hour"
ExpiresByType application/rss+xml "access plus 1 hour"
#Web fonts
ExpiresByType image/svg+xml "access plus 1 year"
ExpiresByType application/x-font-ttf "access plus 1 year"
ExpiresByType application/x-font-truetype "access plus 1 year"
ExpiresByType application/x-font-opentype "access plus 1 year"
ExpiresByType application/font-woff "access plus 1 year"
ExpiresByType application/font-woff2 "access plus 1 year"
ExpiresByType application/vnd.ms-fontobject "access plus 1 year"
ExpiresByType application/vnd.xs-fontobject "access plus 1 year"
ExpiresByType application/font-sfnt "access plus 1 year"
</IfModule>
<IfModule mod_deflate.c>
# Compress HTML, CSS, JavaScript, Text, XML and fonts
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE application/x-font
AddOutputFilterByType DEFLATE application/x-font-opentype
AddOutputFilterByType DEFLATE application/x-font-otf
AddOutputFilterByType DEFLATE application/x-font-truetype
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE font/otf
AddOutputFilterByType DEFLATE font/ttf
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/x-icon
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/xml
# Remove browser bugs (only needed for really old browsers)
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
Header append Vary referer
</IfModule>
##
# Expires Headers YSlow END
##
答案 2 :(得分:0)
<IfModule mod_deflate.c>
Header append Vary referer
</IfModule>