And also: in this instance I don't need any data merging. I just need
to make sure each "request" (HTTP + following AJAX) is using its "own"
stuff. Each request from different windows / tabs is completely
independent.

On Jan 3, 11:51 am, PierreW <[email protected]> wrote:
> Thanks a lot Fred.
>
> I should have added: I am not using the Cookie Store, but
> ActionDispatch::Session::CacheStore (Dalli in my case). But I am not
> sure how it helps. Is there a way to tell which browser window / tab
> is making the request (via a unique ID)?
>
> Thanks!
> PJ
>
> On Jan 3, 11:44 am, Frederick Cheung <[email protected]>
> wrote:
>
>
>
>
>
>
>
> > On Thursday, January 3, 2013 11:26:25 AM UTC, PierreW wrote:
>
> > > Here is the situation:
> > > - the client makes a request
> > > - it is followed by AJAX polling
>
> > > The server needs to keep track of some stuff during this process.
>
> > > I have been using the Session and it "mostly" works… until the user
> > > decides to open another tab in her browser and she makes a new,
> > > parallel request. In this case, the data from the two requests is
> > > merged, which leads to bugs.
>
> > Actually it's far more likely to be overwritten completely.
>
> > > This got discussed quite a bit several years back, but I could not
> > > find any recent "recommended" solution to handle this. Does it exist?
>
> > Personally i think this can't be solved with the cookie store: any given
> > request handler can't know what might have happened to the session in
> > another request. A long time ago i wrote a database backed session store
> > that tried to handle this gracefully (smart_session_store). As long as the
> > different actions were using different keys in the session it worked fine.
> > If you need more sophisticated merging behaviour I would suggest that the
> > session isn't the write data store for you
>
> > Fred
>
> > > I read in this article (http://stackoverflow.com/questions/7570255/
> > > rails-store-unique-data-for-each-open-tab-window<http://stackoverflow.com/questions/7570255/rails-store-unique-data-fo...>)
> > > that an option could
> > > be to prefix the URLs, but it seems quite complicated to me.
>
> > > Thanks a lot!
> > > PJ

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