Placeholder does not work IW15

[wadcompany]

Hello friends, I'm having a problem with IWDBEdit in the adminlte template with IW15. The placeholder is not working. I have already used the ExtraTagParams property in OnHTMLTag and have already tried it directly in the template. But in both cases it does not work, simply when rendering the placeholder is not rendered on the page.

Just to appear on IW14 did not have this problem. If anyone can give me a hand I appreciate it. Thank you.

Best regards

Wagner.