Touch move getting stuck Ignored attempt to cancel a touchmove

Question

I m messing around with touch events on a touch slider and I keep getting the following error       Ignored attempt to cancel a touchmove event with cancelable false    for example because scrolling is in progress and cannot be   interrupted    I m not sure what is causing this problem  I am new to working with touch events and can t seem to fix this problem   Here is the code handling the touch event   Slider prototype isSwipe   function threshold        return Math abs deltaX   gt  Math max threshold  Math abs deltaY        Slider prototype touchStart   function e         if  this  isSliding  return false         touchMoving   true        deltaX   deltaY   0       if  e originalEvent touches length     1             startX   e originalEvent touches 0  pageX          startY   e originalEvent touches 0  pageY           this   slider on  touchmove touchcancel   this touchMove bind this   one  touchend   this touchEnd bind this             isFlick   true           window setTimeout function                 isFlick   false             flickTimeout             Slider prototype touchMove   function e         deltaX   startX - e originalEvent touches 0  pageX      deltaY   startY - e originalEvent touches 0  pageY       if this isSwipe swipeThreshold             e preventDefault            e stopPropagation            swiping   true            if swiping            this slide deltaX   this  sliderWidth  true            Slider prototype touchEnd   function e         var threshold   isFlick   swipeThreshold   this  sliderWidth   2       if  this isSwipe threshold             deltaX  lt  0   this prev     this next              else           this slide 0   deltaX              swiping   false       this   slider off  touchmove   this touchMove  one transitionend    proxy function             this slide 0  true           touchMoving   false         this        You can find the actual slider here at this pen   If you swipe through fast enough it will throw the error and sometimes get stuck in the middle of a swipe  Still can t wrap my head around why it is not working  Any help insight would be greatly appreciated  Not sure what I am doing wrong

User · Answer

I had this problem and all I had to do is return true from touchend and the warning went away

User · Answer

Please remove e preventDefault    because event cancelable of touchmove is false   So you can t call this method

User · Answer

I know this is an old post but I had a lot of issues trying to solve this and I finally did so I wanted to share   My issue was that I was adding an event listener within the ontouchstart and removing it in the ontouchend functions - something like this  function onTouchStart       window addEventListener  touchmove   handleTouchMove        passive  false          function onTouchEnd       window removeEventListener  touchmove   handleTouchMove        passive  true          function handleTouchMove e      e preventDefault        For some reason adding it removing it like this was causing this issue of the event randomly not being cancelable   So to solve this I kept the listener active and toggled a boolean on whether or not it should prevent the event - something like this   let stopScrolling   false   window addEventListener  touchmove   handleTouchMove      passive  false      function handleTouchMove e      if   stopScrolling        return        e preventDefault       function onTouchStart       stopScrolling   true     function onTouchEnd       stopScrolling   false      I was actually using React so my solution involved setting state  but I ve simplified it for a more generic solution   Hopefully this helps someone

User · Answer

The event must be cancelable  Adding an if statement solves this issue   if  e cancelable       e preventDefault        In your code you should put it here   if  this isSwipe swipeThreshold   amp  amp  e cancelable       e preventDefault       e stopPropagation       swiping   true

User · Answer

Calling preventDefault on touchmove while you re actively scrolling is not working in Chrome  To prevent performance issues  you cannot interrupt a scroll   Try to call preventDefault   from touchstart and everything should be ok

[javascript] Touch move getting stuck Ignored attempt to cancel a touchmove

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