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CODE4LIB  January 2015

CODE4LIB January 2015

Subject:

Re: Lost thread - centrally hosted global navbar

From:

Jason Bengtson <[log in to unmask]>

Reply-To:

Code for Libraries <[log in to unmask]>

Date:

Tue, 13 Jan 2015 09:02:31 -0600

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (102 lines)

You don't need CORS or JSONP for straight javascript (in fact JSONP is
designed to get past SOP by getting the browser to treat a JSON file as
regular javascript). You can load js from anywhere on the web, basically.

Best regards,
*Jason Bengtson, MLIS, MA*

Head of Library Computing and Information Systems
Assistant Professor, Graduate College
Department of Health Sciences Library and Information Management
University of Oklahoma Health Sciences Center
405-271-2285, opt. 5
405-271-3297 (fax)
[log in to unmask]
http://library.ouhsc.edu
www.jasonbengtson.com

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<[log in to unmask]>

On Tue, Jan 13, 2015 at 8:47 AM, Anna Headley <[log in to unmask]> wrote:

> Thanks for these suggestions! The details of our requirements are still
> being determined, but I expect it will involve placing the same js-powered
> navbar on multiple sites hosted on different servers with varying degrees
> of access, from entirely in-house to entirely hosted with some ability to
> customize. I think plan A will be to pull in js using CORS and/or JSONP.
>
> Meanwhile I will resign myself to an eternity of wondering what thread my
> brain managed to warp onto this topic.
>
> Best,
> Anna
>
>
> On Sat, Jan 10, 2015 at 9:12 PM, Joe Hourcle <
> [log in to unmask]>
> wrote:
>
> > On Jan 10, 2015, at 8:37 PM, Jason Bengtson wrote:
> >
> > > Do you have access to the server-side? Server side scripting languages
> > (and
> > > the frameworks and CMSes built with them) have provisions for just this
> > > sort of thing. Include statements in PHP and cfinclude tags in
> > coldfusion,
> > > for example. Every Content Management System I've used has had a
> > provision
> > > to create reusable content that can be added to multiple pages as
> blocks
> > or
> > > via shortcodes. If you can use server-side script I recommend it;
> that's
> > > really the cleaner way to do this sort of thing. Another option you
> could
> > > use that avoids something like iframes is to create a javascript file
> > that
> > > dynamically creates the navbar dynamically in your pages. Just include
> > the
> > > javascript file in any page you want the toolbar to appear in. That
> > method
> > > adds some overhead to your pages, but it's perfectly workable if
> > > server-side script is out of reach.
> >
> >
> > The javascript trick works pretty well when you have people
> > mirroring your site via wget (as they won't run the js, and
> > thus won't try to retrieve all of the images that are used
> > to make the page pretty every time they run their mirror job.
> >
> > You can see it in action at:
> >
> >         http://stereo-ssc.nascom.nasa.gov/data/ins_data/
> >
> > The drawback is that some browsers have a bit of a flash
> > when they first hit the page.  It might be possible to
> > mitigate the problem by having the HTML set the background
> > to whatever color the background will be changed to, but I
> > don't quite the flexibility to do that in my case, due to
> > how the page is being generated.
> >
> > -Joe
> >
> > ps.  It's been years since I've done ColdFusion, but I
> > remember there being a file that you could set, that would
> > automatically getting inserted into every page in that
> > directory, or in sub-directories.  I want to say it was
> > often used for authentication and such, but it might be
> > possible to use for this.  If nothing else, you could load
> > header into a variable, and have the pages just print the
> > variable in the right location.
> >
>

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