On Thursday, November 8, 2012 3:50:47 AM UTC+1, Michael Allan wrote:
>
> Hi Matthew,
>
> > My understanding is that when the browser sees a <script> tag, it
> > needs to block until the script resource is available before it can
> > resume parsing and displaying the rest of the page's contents.
> > Putting the <script> tag at the end helps avoid this so the page
> > renders faster.
>
> I was thinking along the same lines at first. But then the guide
> says, "You want to put the GWT selection script as early as possible
> within the body, so that it begins fetching the compiled script before
> other scripts (because it won't block any other script requests)."
>
> https://developers.google.com/web-toolkit/doc/latest/DevGuideOrganizingProjects#DevGuideBootstrap
>
>
>
It really depends on your use case and the user experience you want to have
during loading.
For instance, a very easy way to have a "Loading..." text on the page:
<body>
<noscript>
You must have JavaScript enabled blah blah blah
</noscript>
<script>
document.write("<div id='loading'>Loading…<" + "/div>");
</script>
<script src="myapp/myapp.nocache.js"></script>
With the first thing you do in the onModuleLoad is
Document.get().getElementById('loading').removeFromParent();
The "bootstrap script" is "as early as possible within the body" yet not at
the very beginning.
> > Now that HTML has the async script
> > attribute<
> http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-async>,
>
>
> > that would be another option if you want to keep your script tags in
> > the header. (Note that there's a semantics difference since scripts
> > might execute out of order depending on caching and network speeds.)
>
Also, it might only work with the xsiframe linker, as the others use
document.write() which IIRC could destroy the document when run async.
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/google-web-toolkit/-/Im8rwFrNk08J.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
