I¹ve encountered a bug in T5.1.0.5 where a form that submits via ajax (i.e.
The form has its zone parameter set) will never notify the user if the
server-side action fails. I¹ve traced it down to this line in tapestry.js:

// Set a default failure handler if none is provided.
options.onFailure |= Tapestry.ajaxFailureHandler;

This line is in the sendAjaxRequest function that gets added to all form
elements via Prototype's Element.addMethods function. I used firebug to
debug the above statement and instead of the OR assignment that it looks
like, options.onFailure actually ends up being assigned the value '0'. I
guess this means that its only a bitwise operation and can't be used for
functions etc.

Having looked at the svn history of tapestry.js, it looks like this line has
been in the code for a while, so I'm wondering if anyone else has
encountered this. I'm going to raise a JIRA if noone has any objections?

Ciaran Wood


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