John J Barton wrote:
> Our paper on breakpoints and a link to the demo page:
> http://blog.getfirebug.com/2009/11/03/dynamic-and-graphical-web-page-breakpoints/

I'm truly impressed.  I've been working with FF3.0.x and FB 1.4x; this 
is enough to make me upgrade to FF3.5 to get the new features.

One enhancement occurs to me:

IIUC, some of the new breakpoints can't be set until after an error 
occurs, or after an XHR has completed, etc., implying that the page must 
be reloaded to cause the breakpoints to be hit.  I can imagine 
situations where this might be at least bothersome.  For example, 
perhaps the operation so far has resulted in a database change that will 
cause the next reload to take a different execution path; in this case, 
it'll take some time to restore the context to ensure that the same 
condition will recur, and in extemis, might involve restarting the 
browser.  Or, perhaps it's late in the day, and I'm getting tired, and a 
mysterious problem arises; I don't have time to pursue it, but I'd like 
to set the breakpoints before I shut down and have them set tomorrow 
morning when I start from fresh.

My suggestion would be to offer a button or menu item to script out the 
current breakpoint set to a file, maybe in XML or JSON format, and a 
complementary one to load the file to set the breakpoints.  If the 
format isn't too arcane, the user might be able to edit the file to 
change or create new breakpoints.

FWIW,
-- 
Don Dwiggins
Advanced Publishing Technology

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