Twins buttons with same 'data-identifier' not updated

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Hi Everybody,

I created two like buttons on my webpage. One with the counter of votes and the second with the percentage. Both have the same ‘data-identifier’.

The first one is active for voting, the second is only use for preview the percentage of votes.

My problem is when the user votes thanks to the first button, the second is not updated automatically.

Any solution?

Thank you very much for your help.

Domivax