Current implementation:

[code]
    loadobj._dbg_name = function () {
        with (this) {
            var state = valid?"initialized":"invalid";
            // Decode boolean flags into state. Order is important.
            if (loading) { state = valid?"loading":"aborting"; }
            if (loaded) { state = valid?"loaded":"aborted"; }
            if (timedout) { state = "timedout"; }
            // TODO: [2005-08-11 ptw] LzURL should be able to
            // parse a relative URL
            var url = (new LzURL(this.reqobj.url)).file;
            if (! url) { url = this.reqobj.url; }
            return Debug.formatToString("%s (%s)", url, state);
        }
    };
[/code]

but it must be:
(note using "this.url" instead of "this.reqobj.url";
additionally removed "with"-block to improve readability)

[code]
    loadobj._dbg_name = function () {
        var valid = this.valid;
        var state = valid ? "initialized" : "invalid";
        // Decode boolean flags into state. Order is important.
        if (this.loading) { state = (valid ? "loading" : "aborting"); }
        if (this.loaded) { state = (valid ? "loaded" : "aborted"); }
        if (this.timedout) { state = "timedout"; }
        // TODO: [2005-08-11 ptw] LzURL should be able to
        // parse a relative URL
        var url = (new LzURL(this.url)).file;
        if (! url) { url = this.url; }
        return Debug.formatToString("%s (%s)", url, state);
    };
[/code]