Arduino Yun don't response when I move slider

I followed tutorials and doesn’t have problems while setting up Arduino Yun.
I can see the slider on the target picture, but when I move it, led on Arduino Yun don’t light up.

@ilyarmnzhdn welcome to the forum!

This must be a problem with the code in your arduino program or js file that sends slider value. check the names of objects etc.

thanks, I solved this problem

@ilyarmnzhdn What was the issue ?