Been thinking about this more, just trying to explore where this idea
leads:

- Where tail merge would really shine is that a snippet could be
embedded inside a div tag, for example, but still have a tail pushed
to the end of the page body.
- Script entries in the head and tail blocks could be quickly analysed
and duplicate scripts removed.
- Possibly some additional elements/attributes on scripts inside head
and tail blocks could ultimately evolve into part of a richer
dependency management framework.

On May 10, 9:39 pm, "marius d." <marius.dan...@gmail.com> wrote:
> On May 10, 10:08 pm, Viktor Klang <viktor.kl...@gmail.com> wrote:
>
> > What I've been noodling about for some time is to have dependency management
> > as a part of the framework. That could be easily obtained by having widgets
> > etc register their dependencies in a SessionVar[List[Dependency]] and then
> > simply add a DispatchPF to serve those dependencies as one package with the
> > separate GET.
>
> So what would this solve? ... I mean there is the ResourceServer used
> currently by widgets so that widget's dependencies to be served ...
> perhaps I'm missing something?
>
>
>
>
>
> > The downsides I've come up with are:
>
> > * Adds a reasonable amount of complexity
> > * The order of the dependencies is hard to get right
> > * Premature optimization
> > * Moves away from idea to have JS libraries served by third party hosts
> > * Kind of defeats the purpose of caching JS
>
> > Just my 2 cents,
> > Viktor
>
> > On Sun, May 10, 2009 at 8:35 PM, Timothy Perrett 
> > <timo...@getintheloop.eu>wrote:
>
> > > Yeah google analytics is a good use case. I think talking about
> > > smashing static files is off topic, but there is some value in having
> > > a tail merge for when you want to put stuff in just before the body
> > > tag. My only thinking right now is that why do we need a specific
> > > snippet to do this? Right now, <lift-tag:bind> and <lift-tag:with-
> > > param> would work perfectly for this right?
>
> > > Cheers, Tim
>
> > > On May 10, 3:21 pm, "Bryan." <germ...@gmail.com> wrote:
> > > > A nice use for this "tail merge" would be for the Google Analytics
> > > > tracking code, especially the ecommerce tracking code.
>
> > > > Here's something to keep an eye on as well:  http://blog.digg.com/?p=621
> > > > -- still very new and in development.
>
> > > > --Bryan
>
> > > > On May 10, 9:57 am, David Pollak <feeder.of.the.be...@gmail.com>
> > > > wrote:
>
> > > > > On Sun, May 10, 2009 at 6:55 AM, marius d. <marius.dan...@gmail.com>
> > > wrote:
>
> > > > > > People can choose to "smash" multiple js/css files into a single 
> > > > > > one,
> > > > > > in fact it is a common practice. However for scripts that can be
> > > > > > deferred putting them at the bottom of the page can improve
> > > rendering.
>
> > > > > Okay.. so we're not actually putting the scripts on the page, we're
> > > just
> > > > > putting them right about the </body> tag?
>
> > > > > > Br's,
> > > > > > Marius
>
> > > > > > On May 10, 4:42 pm, David Pollak <feeder.of.the.be...@gmail.com>
> > > > > > wrote:
> > > > > > > On Fri, May 8, 2009 at 5:26 PM, Timothy Perrett
> > > <timo...@getintheloop.eu
> > > > > > >wrote:
>
> > > > > > > > Sounds like this could be a neat addition. Looking forward to 
> > > > > > > > see
> > > what
> > > > > > you
> > > > > > > > come up with :-)
>
> > > > > > > I'm not 100% keen on it.  Loading a ton of stuff into the HTML 
> > > > > > > page
> > > > > > (rather
> > > > > > > than having stuff cached by the browser) makes for larger page
> > > sizes.
> > > > > >  I'd
> > > > > > > much rather see a tool that would analyze the scripts and css that
> > > was
> > > > > > > included across lots of pages and recommending to the developer to
> > > make
> > > > > > 10
> > > > > > > CSS files or 20 script files into 1.  But that's just me.
>
> > > > > > > > Cheers, Tim
>
> > > > > > > > On 08/05/2009 20:19, "marius d." <marius.dan...@gmail.com>
> > > wrote:
>
> > > > > > > > > A <lift:tail> built in snippet might me a good addition. I
> > > could
> > > > > > > > > probably allocate some time to noodle on it.
>
> > > > > > > > > Br's,
> > > > > > > > > Marius
>
> > > > > > > > > On May 8, 5:05 pm, KWright <kev.lee.wri...@googlemail.com>
> > > wrote:
> > > > > > > > >> It's becoming an established best practice that scripts 
> > > > > > > > >> should
> > > be
> > > > > > put
> > > > > > > > >> at the END of a page, where possible, in order to speed up
> > > download
> > > > > > > > >> times
>
> > > > > > > > >> Good article here:
> > >http://developer.yahoo.com/performance/rules.html
>
> > > > > > > > >> It would be nice if Lift could help encourage and support 
> > > > > > > > >> this
> > > by
> > > > > > > > >> allowing a <tail> (or <Lift:tail>?) element that could be
> > > merged in
> > > > > > > > >> the same fashion as the head element, perhaps also removing
> > > > > > > > >> duplicates, etc.
>
> > > > > > > > >> This element would then disappear and expose only its content
> > > when
> > > > > > the
> > > > > > > > >> page is ultimately sent to the browser.
>
> > > > > > > --
> > > > > > > Lift, the simply functional web frameworkhttp://liftweb.net
> > > > > > > Beginning Scalahttp://www.apress.com/book/view/1430219890
> > > > > > > Follow me:http://twitter.com/dpp
> > > > > > > Git some:http://github.com/dpp
>
> > > > > --
> > > > > Lift, the simply functional web frameworkhttp://liftweb.net
> > > > > Beginning Scalahttp://www.apress.com/book/view/1430219890
> > > > > Follow me:http://twitter.com/dpp
> > > > > Git some:http://github.com/dpp
>
> > --
> > Viktor Klang
> > Senior Systems Analyst

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