bug in addArg() in wp-ajax.js causes nothing to happen

[joetan]

There is a bug in the addArg() in wp-includes/wp-ajax.js

on line 30, the variable a is basically incorrectly typed:
var a = [];

it should be instead:
var a = $H();

the function definition should be:

addArg: function(key, value) {
var a = $H();
a[encodeURIComponent(key)] = encodeURIComponent(value);
this.options.parameters = $H(this.options.parameters).merge(a);
}

[technosailor]

No idea what the problem is you're encountering, however I've attached the diff of your changes for the sake of ease for the devs.

[joetan]

thanks technosailor.

To help clarify, the function should basically add a new key into the this.options.parameters hash variable, but it never gets updated with the new key because "a" was created as []

I'm encountering this bug with a plugin I'm working on, which does some ajax stuff. It doesn't appear that this function is actually used anywhere else within the WordPress codebase.

[rob1n]

I think that should be a = $H() (note parenthesis, not square brackets).

[rob1n]

Patch updated.

Michael: look good?

[rob1n]

(In [5498]) Fix wp-ajax.js addArg's hashes. Props technosailor. fixes #4277