1430709 - Iframe resize event is not getting fired

Status: RESOLVED DUPLICATE of bug 1295245

(Core :: Web Painting, defect, P2)

Description

[Yogesh]

Attachment: HTMLPage1.html

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36

Steps to reproduce:

I created a simple iframe at runtime onload of document and added resize event listener to it.
function registerResizeDetector() {
            let resizeDetector = document.createElement('iframe');
            resizeDetector.style.width = "100%";
            resizeDetector.style.height = "100%";
            resizeDetector.style.position = "absolute";
            resizeDetector.style.border = "0";
            resizeDetector.style.visibility = "hidden";
            resizeDetector.src = "about:blank";
            document.body.appendChild(resizeDetector);
            var iframeWin = resizeDetector.contentWindow;
            iframeWin.addEventListener('resize', function () { alert('resize'); });
        }


Actual results:

Resize event is not getting fired, but it works for all other browser. 


Expected results:

Resize event should get fired.

Comment 1

[Hsin-Yi Tsai (she/her) [:hsinyi]]

Thanks for reporting this issue, Yogesh. We will triage it and have priority assigned then.

Comment 2

[Andreas Farre [:farre]]

The key issue is that the resize event isn't dispatched if visibility is set to hidden.

Comment 3

[Yogesh]

Hi,

This issue is very critical for us. Can you provide me estimated time to fix this issue or any possible workaround.   

Thanks & regards,
Yogesh K.