On 16 nov, 16:34, magat <mathieu.a...@gmail.com> wrote: > Hi all, > > I'm using a RequestBuilder from com.google.gwt.http.client to update > informations in my app (calling an external home-made API which I must > call with http GET).
Doing updates using GET requests is a Bad Thing™, to begin with. > Everything works just the way I want to, except when using IE8 (and > maybe other IEs, haven't tested them yet). When in IE, the requests > are cached, and the server never receives any past the first one. > > I found out that this problem is related to the way IE caches Ajax > requests (someone had the same problem with JQuery here : > http://stackoverflow.com/questions/1013637/unexpected-caching-of-ajax...). The workaround was to use "cache: false", which in jQuery adds a parameter to the query-string (named "_" with the value being the current timestamp: see https://github.com/jquery/jquery/blob/master/src/ajax.js#L268 ) > Unfortunately, asking my users to change the caching params in IE is > not possible, so I'm trying to solve the problem in the request > builder itself. > > I tried to add http headers to prevent IE from caching the requests : > > requestBuilder.setHeader("Cache-Control", "max-age=0,no-cache,no- > store,post-check=0,pre-check=0"); > requestBuilder.setHeader("Expires", "Mon, 26 Jul 1997 05:00:00 GMT"); > > But IE ignores them :( > > I'm open to every suggestions, thanks for your help ! Have you tried sending aggressive no-cache headers *from the server*? But the obvious fix would be to not use GET for what it's not meant to. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
