Discovering the culprit code responsible for involuntary routing in a legacy website

I am seeking assistance with troubleshooting a problem I am facing while working on revamping an old AngularJS based website. I keep coming across unexpected routing events triggered by unknown code.

When clicking on various elements on the site which do not seem to have any event handlers associated with such behavior, the routing takes me to a "page-not-found" page as anticipated.

I have already set breakpoints around all instances of "$location" and "$route", and thoroughly examined all the "href" attributes in the code but found nothing suspicious.

Upon placing a break-point inside a '$routeChangeStart' hook as shown below:

$rootScope.$on('$routeChangeStart', function (event, next, current) {
    debugger;
    //.....
}

The objects returned are:

next = { 
            params: {}
            pathParams: {} 
           } 
event = {
   currentScope: m {$id: 2, $$childTail: m, $$childHead: m, $$prevSibling: null, 
   $$nextSibling: null, …}
   defaultPrevented: false
   name: "$routeChangeStart"
   preventDefault: ƒ ()
   targetScope: m {$id: 2, $$childTail: m, $$childHead: m, $$prevSibling: null, 
   $$nextSibling: null, …}
}

(targetScope==currentScope) is true

The project also incorporates Kendo and JQuery libraries.

I understand that a specific answer may not be guaranteed, but I appreciate any advice offered. Where should I focus my attention?

Answer №1

My solution involved examining the call-stack using a debugger and setting a break-point in

$rootScope.$on('$routeChangeStart' ...

The reason why pathParams were empty was because the route being used was invalid.

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