Test document.all.

document.all is native object on IE such that document.all[x] is similar to
document.getElementById(x).

It is worth separate testing because Firefox supports it, but treats it
specially so that:

   typeof document.all === "undefined"
   !!document.all

so that feature detection code will take the no document.all path, but code
that does not feature detect will continue to work in quirks mode:

   document.all.x

is not a TypeError.  It is in the square free shell which is in standards
compliance mode.

http://weblogs.mozillazine.org/asa/archives/007118.html explains:
"""
December 17, 2004
mozilla 1.7.5 released

...

The new undetectable document.all support, and support for exposing elements by their ID in the global scope for greater IE compatibility when viewing pages that don't request standards compliant behaviour is documented in bugs 248549 and 256932.
"""

[Mark S. Miller, 2012-02-27 18:06:09]

See also https://bugzilla.mozilla.org/show_bug.cgi?id=521670

On Mon, Feb 27, 2012 at 9:59 AM, <mikesamuel@gmail.com> wrote:

> Reviewers: felix8a,
>
> Description:
> document.all is native object on IE such that document.all[x] is similar
> to
> document.getElementById(x).
>
> It is worth separate testing because Firefox supports it, but treats it
> specially so that:
>
>   typeof document.all === "undefined"
>   !!document.all
>
> so that feature detection code will take the no document.all path, but
> code
> that does not feature detect will continue to work in quirks mode:
>
>   document.all.x
>
> is not a TypeError.  It is in the square free shell which is in
> standards
> compliance mode.
>
>
http://weblogs.mozillazine.**org/asa/archives/007118.html<http://weblogs.mozi...:
> """
> December 17, 2004
> mozilla 1.7.5 released
>
> ...
>
> The new undetectable document.all support, and support for exposing
> elements by their ID in the global scope for greater IE compatibility
> when viewing pages that don't request standards compliant behaviour is
> documented in bugs 248549 and 256932.
> """
>
> Please review this at
http://codereview.appspot.com/**5698077/<http://codereview.appspot.com/5698077/>
>
> Affected files:
>  M     tests/com/google/caja/plugin/**domita_test.html
>  M     tests/com/google/caja/plugin/**domita_test_untrusted.html
>
>
> Index: tests/com/google/caja/plugin/**domita_test.html
> ==============================**==============================**=======
> --- tests/com/google/caja/plugin/**domita_test.html       (revision 4789)
> +++ tests/com/google/caja/plugin/**domita_test.html       (working copy)
> @@ -141,7 +141,7 @@
>
>       <div class="testcontainer" id="test-opaque-nodes-xyz___"
>        ><!-- Comment -->a<script id="howdy-script-xyz___">/* Howdy
> */</script
> -       >b<object>obj</object>c</div>
> +       >b<object id="dangerous-object">obj</**object>c</div>
>
>       <!--
http://www.google.com/favicon.**ico<http://www.google.com/favicon.ico>has been
visited
>            by the above IMG tag -->
> Index: tests/com/google/caja/plugin/**domita_test_untrusted.html
> ==============================**==============================**=======
> --- tests/com/google/caja/plugin/**domita_test_untrusted.html
> (revision 4789)
> +++ tests/com/google/caja/plugin/**domita_test_untrusted.html
> (working copy)
> @@ -1893,6 +1893,14 @@
>   child.nodeValue = 'Foo';
>   assertEquals('Foo', child.nodeValue);
>
> +  var dangerousObject;
> +  try {
> +    dangerousObject= document.all['dangerous-**object'];
> +  } catch (e) {
> +    // ok
> +  }
> +  assertEquals('dangerousObject'**, void 0, dangerousObject);
> +
>   pass('test-opaque-nodes');
>  });
>
>
>
>


-- 
    Cheers,
    --MarkM

[MikeSamuel, 2012-02-27 18:59:06]

2012/2/27 Mark S. Miller <erights@google.com>:
> See also https://bugzilla.mozilla.org/show_bug.cgi?id=521670

Lovely.  In ES6 there will be only one undefined.

[felix8a, 2012-02-27 19:46:31]

domita_test is not run any more, and I have a pending CL that deletes it.  how
about put this in one of the es53-test-domado files?

[MikeSamuel, 2012-02-27 22:58:54]

On 2012/02/27 19:46:31, felix8a wrote:
> domita_test is not run any more, and I have a pending CL that deletes it.  how
> about put this in one of the es53-test-domado files?

Dumb of me.  I should've known that.

[felix8a, 2012-02-27 23:50:42]

lgtm