observer-in-iframe.html
<!DOCTYPE html>
<style>
pre, #log {
position: absolute;
top: 0;
left: 200px;
}
</style>
<iframe id="target-iframe" src="resources/observer-in-iframe-subframe.html" width="150px" height="150px"></iframe>
<!DOCTYPE html>
<style>
pre, #log {
position: absolute;
top: 0;
left: 200px;
}
</style>
<iframe id="target-iframe" src="resources/observer-in-iframe-subframe.html" width="150px" height="150px"></iframe>