Fix preserve3d's IE11/Win10 false positive

[paulirish]

This is @aFarkas's patch. I'm just helping 😺

fixes #1748

[paulirish]

test page: https://output.jsbin.com/bajubol/1/quiet

win7 ie11 - should be false

win10 ie11 - should be true

lookin good.

[ryanseddon]

Isn't this the preserve3d test looks false on both in your screenshot still?

[paulirish]

Isn't this the preserve3d test looks false on both in your screenshot still?

it does appear that is true... :/

[ryanseddon]

@aFarkas is this test missing anything? Seem to be still getting a false negative in win10?

[aFarkas]

Not sure, but I think your expectations are wrong. IE11 should always return false (in both cases).

The problem was, that IE11 on Win10 returned true although it should return false. Now it returns always false.

This is also what the title says.

@paulirish Thank you very much to add the modified test (it's so important to avoid layout in modern browsers.)

[ryanseddon]

so if we rebase or merge in master this should be god to go right @paulirish @aFarkas?

[paulirish]

Rebased and updated. @aFarkas can you review my logic flip in f9ddfa2 ?

[aFarkas]

LGTM

[ryanseddon]

Build failing was a linting issue merged to master so this is good to go, merging.

[paulirish]

Ace. Thanks for the followup, @ryanseddon !