document.getElementsByTagName is not working in Portal

[Rohit Agarwal]

Hi,

document.getElementsByTagName is not working in service portal. is there any replacement of it ??

Code which we are using:

var icons = document.getElementsByTagName('a');
for (i = 0; i < icons.length; i++) {
if (icons[i].id == 'catalog_super_diamond_anchor') {
icons[i].onclick = null;
}
}

[Willem]

Document is not supported by the Service Portal:

https://docs.servicenow.com/bundle/istanbul-servicenow-platform/page/build/service-portal/concept/un...

As for a workaround I have seen 'this.document' being suggested in the community. However that did not work for me.

[Willem]

Script will look like this:

var icons = this.document.getElementsByTagName('a');
for (i = 0; i < icons.length; i++) {
    if (icons[i].id == 'catalog_super_diamond_anchor') {
        icons[i].onclick = null;
    }
}

[asifnoor]

Hello Rohit,

The catalog client script ui type should be set to ALL.

and you have to use this.document and it will work. I have modified the script. Check this.

var icons = this.document.getElementsByTagName('a');
for (i = 0; i < icons.length; i++) {
    alert("Entered while loop");
  if (icons[i].getAttribute("id") == 'catalog_super_diamond_anchor') {
    alert("Entered if condition");
    icons[i].onclick = null;
  }
}

Kindly mark the comment as a correct answer and also helpful if this solves the problem.

[Ankur Bawiskar]

@Rohit Agarwal 

Can you try this and check once

1) Set Isolate Script field on your client script as False

• This field is not on form but from list you can set it to false
• by default it is true

2) Update script as below

var icons = this.document.getElementsByTagName('a');
for (i = 0; i < icons.length; i++) {
if (icons[i].id == 'catalog_super_diamond_anchor') {
icons[i].onclick = null;
}
}

I was able to use this.document.getElementsByClassName() in portal view and it worked fine for me.

Regards
Ankur