Hey Jan,
Meta headers only work for HTML pages, so in Ajax applications they can
only be presented to the browser for the initial page. In JWt (and Wt) this
only is possible when using a progressive bootstrap mode.
The no-cache headers however are added by JWt (and Wt) directly to the HTTP
response(s) so there is no need for you to do this yourself. Are you seeing
cases where this is not working properly?
Regards,
koen
2014/1/16 Jan Goyvaerts <jan.goyvae...@noesissolutions.com>
> Hi there,
>
> Is it possible JWT ignores meta headers ? We're trying to set headers to
> make sure IE does no caching at all. A classic I presume. :-)
>
> *WApplication.addMetaHeader("cache-control", "max-age=0");*
> *WApplication.addMetaHeader("cache-control", "no-cache");*
> *WApplication.addMetaHeader("expires", "0");*
> *WApplication.addMetaHeader("expires", "Tue, 01 Jan 1980 1:00:00 GMT");*
> *WApplication.addMetaHeader("pragma", "no-cache");*
>
> The aforementioned code has no effect on the generated html page.
>
> The mystery is elucidated when looking to the source code. It maintains a
> list of meta headers, but nowhere is this list used to build pages.
> Moreover it is assumed the meta header names are unique for each page.
> However, in order to cope with different browsers, the same meta header
> must be repeated. Each header targets a different browser.
>
> Is this on the roadmap of JWT ?
>
> Regards,
>
> Jan
>
>
>
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