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Re: Google Chrome + GET 304 Not Modified [message #1138835 is a reply to message #756780] |
Tue, 15 October 2013 11:04 |
Eclipse User |
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Hi,
Is it possible to fix this issue somehow at RAP framework at all? Many of our users using Chrome and the overall perception of RAP in general suffers, because of this annoying bug - no matter who is guilty.
Regards,
Nedelcho
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Re: Google Chrome + GET 304 Not Modified [message #1153301 is a reply to message #1138835] |
Thu, 24 October 2013 14:14 |
Eclipse User |
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Hi again,
As Felix suggested, here is some simple Filter, which can do the job:
...
public class ExpiresFilter implements Filter {
private static final String CACHE_CONTROL = "Cache-control"; //$NON-NLS-1$
private static final String MAX_AGE_10000 = "max-age=10000"; //$NON-NLS-1$
private static final String PRAGMA = "Pragma"; //$NON-NLS-1$
private static final String EXPIRES = "Expires"; //$NON-NLS-1$
private static final String RWT_RESOURCES_THEMES_IMAGES = "rwt-resources/themes/images/"; //$NON-NLS-1$
private static final String RWT_RESOURCES_GENERATED = "rwt-resources/generated"; //$NON-NLS-1$
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
chain.doFilter(request, response);
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
if (req.getRequestURL() != null
&& (req.getRequestURL().indexOf(RWT_RESOURCES_GENERATED) >= 0
|| req.getRequestURL().indexOf(RWT_RESOURCES_THEMES_IMAGES) >= 0)) {
res.setDateHeader(EXPIRES, (new GregorianCalendar(3000, 1, 1)).getTime().getTime());
res.setHeader(PRAGMA, MAX_AGE_10000);
res.setHeader(CACHE_CONTROL, MAX_AGE_10000);
}
}
@Override
public void destroy() {
}
...
and in web.xml add:
...
<filter>
<filter-name>ExpiresFilter</filter-name>
<filter-class><your package>.ExpiresFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>ExpiresFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
...
This is valid in case you are using the WAR packaged RAP application.
Regards,
Nedelcho
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