2 <html class=
"reftest-wait">
9 <iframe src=
"about:blank"></iframe>
12 let div
= document
.querySelector('div');
13 let iframe
= document
.querySelector('iframe');
14 iframe
.onload = function() {
15 let doc
= iframe
.contentDocument
;
16 let e
= doc
.createElement('textarea');
17 doc
.body
.appendChild(e
);
18 setTimeout(function() {
19 getComputedStyle(e
).minHeight
;
20 div
.style
.display
= 'none';
21 setTimeout(function() {
22 getComputedStyle(e
).minHeight
;
23 document
.documentElement
.className
= "";