I have the following html:
<img id="avatar" src="[[avatarUrl]]" />
<input id="avatar-url" type="text" placeholder="avatar url" value="{{avatarUrl::input}}" />
And js:
avatarUrl.val( profile.avatarUrl );
avatarUrl.trigger("input");
This code is setting the input value, but polymer doesn't update img's src attribute.
I tried triggerHandler but it is also not working.
Maybe instead of this: value="{{avatarUrl::input}}"
you need this? value="{{avatarUrl::change}}"
I'm not sure but I think that your use of square brackets ([[]]) is the problem. I don't have acces to the computer so I can't check it but try to change to <img src="{{avatarUrl}}">
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