Hello btt
i am trying to make a slider widget but every time I use the slider the web console says can't find variable "value" and I don't get why, so I am wondering if some of you can spot the error 
here is some pictures of my code and the error
Your
do JavaScript "player.seek(value)"
is passing the "player.seek(value)" as a string. Value in this case can not be replaced by the real value you have calculated in the line before.
Instead you would have to construct a string that contains the actual value you have calculated (see https://alvinalexander.com/blog/post/mac-os-x/applescript-concatenate-strings/ )
I'm not sure about the playerSessionId. Maybe that has been defined on the webpage already, in that case remove the "const"
hello again
thanks for the help, I have now made it into a string that works but every time I try to slide on the slider it sends the video back to the beginning. do you have any solution to why that is happing?