I have a VF page that call a flow when a custom button is clicked (maybe not a best practice but I'm working on this project, and I not have time to rework all this process...). The problem is that when we are in a community, this button should be hide or disabled.

So for now in the VF page I just filter if we are in a community using Site.getSiteId() and I can detect if I am in a community or not, with something like this :

<apex:pageBlockSection rendered="{!isInCommunity != true}">
    <flow:interview name="AssignCases"
    finishLocation="{!IF($User.UITheme == 'Theme4d' || $User.UITheme == 'Theme4t','/one/one.app#/sObject/Case/home','/500')}">
    <apex:param name="socvCasecoll" value="{!Selected}"/>
    <apex:param name="vUid" value="{!$User.Id}"/>


<apex:pageBlockSection rendered="{!isInCommunity == true}">


So I'm not sure if I need touse the second apex:pageBlockSection, but i try to put some javascript at the bottom of my page to retrieve the button (and try to hide it later):

var isInCommunity ={!isInCommunity};
    console.log('isInCommunity : ' + isInCommunity);
    if(isInCommunity == true){
        console.log('passe dans isInCommunity == true');
        var bouton = document.querySelector('.forceActionLink');

but the problem is that I got null in the log, so I can't hide it...

**** EDIT ****

Here is the DOM with the button : enter image description here

I also try to get the element by using document.querySelector('a[title="M\'affecter cette demande"]') to isolate the a tag, but it also returns null.

  • Your included markup does not make any reference to forceActionLink, let alone in a class. What leads you to believe this selector is the right one?
    – Adrian Larson
    Apr 17, 2018 at 9:11
  • Thats because the buton with this markup isn't in the VF, it is a custom button that is on the list of the case, and this custom button call the VF page. I got the markup when inspecting the page, since I can't add any class or id to the button...
    – dou
    Apr 17, 2018 at 9:19
  • Are you sure it's in the same window? Not in an iframe or anything?
    – Adrian Larson
    Apr 17, 2018 at 14:07
  • I don't see any ifram or anything... but as I said in the question, I don't know if it was very clear, the button isn't in the VF page where I call the javascript.
    – dou
    Apr 17, 2018 at 14:12

1 Answer 1


You can not access Apex variable in JavaScript like this.

var isInCommunity ={!isInCommunity};

Correct way to access apex variable in Javascript :

var isInCommunity = '{!isInCommunity}';

  • even if the apex variable is a boolean ? Because if I use the simple quote, then I did not pass into the if, event if the var isInCommunity is true...
    – dou
    Apr 17, 2018 at 9:15
  • ohh.. Mak sure you call query selector after DOM has loaded.
    – MIX DML
    Apr 17, 2018 at 9:32
  • Well I try to call first window.onload but same problem...
    – dou
    Apr 17, 2018 at 9:35
  • can you show me DOM code of forceActionLink ?
    – MIX DML
    Apr 17, 2018 at 9:39
  • I editedt mu question with a copy of the dom for the button
    – dou
    Apr 17, 2018 at 9:47

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