document object not available in timer function

Question

Im trying to popup an information window in a specific interval. Its working fine when executing alone

var w = window.open('', "", "width=600, height=400, scrollbars=yes");
    //alert(ICJX_JXPath);

 var html = "<h3>Hi</h3>";

 $(w.document.body).html(html);

But if I execute the same in a timer function it triggers an error something like document is null

var myInterval = setInterval(function () {
            var w = window.open('', "", "width=600, height=400, scrollbars=yes");
    //alert(ICJX_JXPath);

 var html = "<h3>Hi</h3>";

 $(w.document.body).html(html);
        },10000);

Whats wrong with my timer code

document.body is accessible in the `setinterval` tag but the peoblem is actually with the returning window object w returning from `window.open` function. which is some times return null thats why i put null `if(w != null)` before the code and it works fine — Ahsam Aslam, May 23 '19 at 06:02

Md. Abu Sayed · Answer 1 · 2019-05-23T06:36:30.307

1

Your code is right but this code contains some unexpected text that actually hidden text. it shows in the browser source see the below screenshot:

After edited that workable code here:

var myInterval = setInterval(function () {
    var w = window.open('', "", "width=600, height=400, scrollbars=yes");
    var html = "<h3>Hi</h3>";
    $(w.document.body).html(html);
},10000);

Above code not working directly in chrome fix the problem following code:

window.open('about:blank', "window", "width=600, height=400, scrollbars=yes");

-- Thank you --

edited May 23 '19 at 06:36

answered May 23 '19 at 05:57

Md. Abu Sayed

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Still its triggering the error Cannot read property 'document' of null – Sandeep Thomas May 23 '19 at 06:13
THanks it worked. But strange thing is chrome popup blocker was blocking it when opening from Timer. But when opening directly it is not blocking – Sandeep Thomas May 23 '19 at 06:31
@SandeepThomas please review my answer – Md. Abu Sayed May 23 '19 at 06:37
follow this link: https://stackoverflow.com/questions/4994063/setting-the-page-title-of-chrome-window-open – Md. Abu Sayed May 23 '19 at 06:38

document object not available in timer function

1 Answers1