jQuery scrollTop doesn t seem to work in Safari or Chrome Windows

Question

I ve got a simple setup to allow a  help -style window to be loaded and scrolled to a particular point on the page  More or less the code looks like this   var target      code     target offsetParent   scrollTop target offset   top - fudgeValue     The target of the scroll and the fudge value are determined by a couple of hints dropped on the page  and I m having no problems with that part of this mechanism anywhere   In Firefox and IE8  the above code works exactly like I want  the scrolled box  in this case  the page body  correctly scrolls the contained stuff to the right point in the window when it s told to do so   In Chrome and Safari  however  the call to scrollTop   apparently does nothing at all  All the numbers are OK  and the target refers to the right thing  and the offsetParent   is indeed the body element   but nothing at all happens   As far as I can tell from googling around  this is supposed to work   Is there something funny about the renderer under Safari and Chrome   This is jQuery 1 3 2 if that matters   Test page  http   gutfullofbeer net scrolltop html

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There is a bug in Chrome  not in Safari at the time we checked  that gives unexpected results in Javascript s various width and height measurements when opening tabs in the background  bug details here  - we logged the bug in June and it s remained unresolved since   It s possible you ve encountered the bug in what you re attempting to do

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setTimeout function            body html document   scrollTop     body   height          100     This probably should work even if time is 10ms

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The browser support status is this   IE8  Firefox  Opera     html    Chrome  Safari     body    So this works   bodyelem     browser safari      body        html     bodyelem animate   scrollTop  0   500

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Which element is the offsetParent of another is not well-specified and may vary across browsers  It is not guaranteed to the be the scrollable parent you are looking for   The body itself also shouldn t be the page s main scrollable element  It only is in Quirks Mode  which in general you would want to avoid   The offsetTop   offsetLeft   offsetParent measurements aren t terribly useful by themselves  they re only really reliable when you use them in a loop to get the total page-relative co-ordinates  as position   in jQuery does   You should know which is the element you want to scroll and find out the difference in page co-ordinates between that and the descendant target to find out how much to scroll it by   Or if it s always the page itself you re talking about scrolling  just use a location href      target id navigation instead

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For the scroll    html  or  body  for setter  depend on browser      window  for getter     A jsFiddle for testing is here   http   jsfiddle net molokoloco uCrLa   var  window     window      Set in cache  intensive use        document     document        body      body        scrollElement    html  body        scrollElement         var isAnimated   false      Find scrollElement    Inspired by http   www zachstronaut com posts 2009 01 18 jquery-smooth-scroll-bugs html   scrollElement  each function i            html  body  for setter    window for getter         var initScrollTop   parseInt   this  scrollTop    10         this  scrollTop initScrollTop   1       if   window scrollTop      initScrollTop   1            scrollElement   this nodeName toLowerCase       html OR body         return false     Break            scrollElement     scrollElement       UTILITIES    var getHash   function             return window location hash                   setHash   function hash            if  hash  amp  amp  getHash      hash  window location hash   hash             getWinWidth   function             return  window width                  iphone     window innerWidth  amp  amp  window innerWidth  gt  0    window innerWidth    window width         getWinHeight   function             return  window height                  iphone     window innerHeight  amp  amp  window innerHeight  gt  0    window innerHeight    window height         getPageWidth   function             return  document width               getPageHeight   function             return  document height               getScrollTop   function             return parseInt  scrollElement scrollTop       window scrollTop    10              setScrollTop   function y             scrollElement stop true  false  scrollTop y              myScrollTo   function y  newAnchror       Call page scrolling to a value  like native window scrollBy x  y      Can be flooded         isAnimated   true     kill waypoint AUTO hash         var duration   360    Math abs y - getScrollTop      0 42      Duration depend on distance            if  duration  gt  2222  duration   0     Instant go                scrollElement stop true  false  animate               scrollTop  y                          duration  duration              complete  function        Listenner of scroll finish                    if  newAnchror  setHash newAnchror      If new anchor                 isAnimated   false                                       goToScreen   function dir       Scroll viewport page by paginette    1  -1 or factor         var winH   parseInt  getWinHeight     0 75    dir      75  de la hauteur visible comme unite         myScrollTo getScrollTop     winH            myScrollTo  getPageHeight     2    iamAMiddleAnchor

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I my case  the button was working for two of 8 links  My solution was      body html document   animate  scrollTop     myLocation   offset   top  2500     This created a nice scroll effect as well

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Works for Safari  Firefox  and IE7  haven t tried IE8    Simple test    lt button onclick     body html   scrollTop 0    gt   Top  lt  button gt    lt button onclick     body html   scrollTop 100    gt  Middle  lt  button gt    lt button onclick     body html   scrollTop 250    gt  Bottom  lt  button gt    Most examples use either one or both  but in reverse order  i e    html body     Cheers    And semantic purists out there  don t bust my chops -- I ve been looking for this for weeks  this is a simple example  that validates XHTML strict   Feel free to create 27 layers of abstraction and event binding bloat for your OCD peace of mind   Just please give due credit  since the folks in the jQuery forums  SO  and the G couldn t cough up the goods  Peace out

User · Answer

I was having this problem in Safari and Chrome  Mac  and discovered that  scrollTop would work on    body   but not    html  body    FF and IE however works the other way round  A simple browser detect fixes the issue   if   browser safari      bodyelem      body   else     bodyelem      html body    bodyelem scrollTop 100    The jQuery browser value for Chrome is Safari  so you only need to do a detect on that   Hope this helps someone

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To summarise solutions from a couple of questions answers   If you want to get the current scroll offset use     document  scrollTop     To set the scroll offset use      html body   scrollTop x    To animate the scroll use use      html body   animate  scrollTop  x

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I was facing this problem  I created this link at the bottom and implemented the jQuery scrollTop code and it worked perfectly in Firefox  IE  Opera but didn t work in Chrome and Safari  I m learning jQuery so I don t know if this solution is technically perfect but this worked for me  I just implemented 2 ScrollTop codes the first one uses    html   which works for Firefox  etc  The second one uses    html body   this works for Chrome and Safari      a top   click function             html   animate  scrollTop  0    slow        return false          html body   animate  scrollTop  0    slow        return false

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I am not sure if this is the case   I was using Google s CDN for jQuery i e     Putting  https   before   ajax google        worked  it seems Safari recognized it as a local path  checked it by - Inspect Element   Sorry  only tested in Safari 7 0 3

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This appears to be working in FF and WebKit  IE not tested so far     document  scrollTop

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body html document   scrollTop     map canvas   position   top     This works for Chrome 7  IE6  IE7  IE8  IE9  FF 3 6 and Safari 5   2012 UPDATE This is still good but I had to use it again  Sometimes position doesn t work  so this is an alternative      body html document   scrollTop     map canvas   offset   top

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Yeah  there appears to be a bug in Chrome when it comes to modifying the body  trying to make it into an offsetParent  As a work-around  I suggest you simply add another div to wrap the  content div  and make that scroll   html  body   height  100   padding  0     html   width  100   background-color   222  overflow  hidden  margin  0     body        width  40em  margin  0px auto     narrow center column layout       background-color  white      position  relative     allow positioning children relative to this element        scrollContainer    wraps  content  scrolls         overflow  auto     scroll       position absolute     make offsetParent      top  0  height  100   width  100      fill parent        header       position  absolute     top  0px  height  50px  width  38 5em     background-color  white     z-index  1     sit above  content in final layout        content   padding  5px 14px 50px 5px        Tested in FF 3 5 5  Chrome 3 0 195 33  IE8    Live demonstration    x000D   x000D    function     x000D              header   find  button   click function ev    x000D            var button     this   target      div     button attr  class     x000D            var scroll   target offsetParent   scrollTop     x000D            target offsetParent   scrollTop target offset   top   scroll - 50   x000D              x000D            x000D  html  body   height  100   padding  0    x000D        html   width  100   background-color   222  overflow  hidden  margin  0    x000D        body   width  40em  margin  0px auto  background-color  white  position  relative    x000D         scrollContainer   overflow  auto  position absolute  top  0  height  100   width  100     x000D         header   position  absolute  top  0px  height  50px  width  38 5em  background-color  white  z-index  1    x000D         content   padding  5px 14px 50px 5px     x000D   lt script src  https   ajax googleapis com ajax libs jquery 1 9 1 jquery min js  gt  lt  script gt  x000D       lt div id  header  gt   x000D        Header Box x000D         lt button class  A  gt A lt  button gt   x000D         lt button class  B  gt B lt  button gt   x000D         lt button class  C  gt C lt  button gt   x000D       lt  div gt   x000D       lt div id  scrollContainer  gt  x000D       lt div id  content  gt   x000D         lt div style  height  50px  gt   lt  div gt   x000D         lt div class  A  gt   x000D           lt h1 gt A lt  h1 gt   x000D           lt p gt My name is Boffer Bings  I was born of honest parents in one of the humbler walks of life  my father being a manufacturer of dog-oil and my mother having a small studio in the shadow of the village church  where she disposed of unwelcome babes  In my boyhood I was trained to habits of industry  I not only assisted my father in procuring dogs for his vats  but was frequently employed by my mother to carry away the debris of her work in the studio  In performance of this duty I sometimes had need of all my natural intelligence for all the law officers of the vicinity were opposed to my mother s business  They were not elected on an opposition ticket  and the matter had never been made a political issue  it just happened so  My father s business of making dog-oil was  naturally  less unpopular  though the owners of missing dogs sometimes regarded him with suspicion  which was reflected  to some extent  upon me  My father had  as silent partners  all the physicians of the town  who seldom wrote a prescription which did not contain what they were pleased to designate as  Ol  can   It is really the most valuable medicine ever discovered  But most persons are unwilling to make personal sacrifices for the afflicted  and it was evident that many of the fattest dogs in town had been forbidden to play with me--a fact which pained my young sensibilities  and at one time came near driving me to become a pirate  x000D         lt  div gt   x000D         lt div class  B  gt   x000D           lt h1 gt B lt  h1 gt   x000D           lt p gt   x000D          Looking back upon those days  I cannot but regret  at times  that by indirectly bringing my beloved parents to their death I was the author of misfortunes profoundly affecting my future  x000D           lt p gt   x000D          One evening while passing my father s oil factory with the body of a foundling from my mother s studio I saw a constable who seemed to be closely watching my movements  Young as I was  I had learned that a constable s acts  of whatever apparent character  are prompted by the most reprehensible motives  and I avoided him by dodging into the oilery by a side door which happened to stand ajar  I locked it at once and was alone with my dead  My father had retired for the night  The only light in the place came from the furnace  which glowed a deep  rich crimson under one of the vats  casting ruddy reflections on the walls  Within the cauldron the oil still rolled in indolent ebullition  occasionally pushing to the surface a piece of dog  Seating myself to wait for the constable to go away  I held the naked body of the foundling in my lap and tenderly stroked its short  silken hair  Ah  how beautiful it was  Even at that early age I was passionately fond of children  and as I looked upon this cherub I could almost find it in my heart to wish that the small  red wound upon its breast--the work of my dear mother--had not been mortal  x000D         lt  div gt   x000D         lt div class  C  gt   x000D           lt h1 gt C lt  h1 gt   x000D           lt p gt It had been my custom to throw the babes into the river which nature had thoughtfully provided for the purpose  but that night I did not dare to leave the oilery for fear of the constable   After all   I said to myself   it cannot greatly matter if I put it into this cauldron  My father will never know the bones from those of a puppy  and the few deaths which may result from administering another kind of oil for the incomparable  ol  can   are not important in a population which increases so rapidly   In short  I took the first step in crime and brought myself untold sorrow by casting the babe into the cauldron  x000D         lt  div gt   x000D         lt div style  height  75em   gt   lt  div gt   x000D       lt  div gt   x000D       lt  div gt  x000D   x000D   x000D

User · Answer

how about  var top      html   scrollTop         body   scrollTop

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There is not a big choice of elements that might get auto-assigned with a scrollTop value as we scroll a webpage   So I wrote this little function to iterate through the probable elements and return the one we seek   var grab function         var el                 body my body  html  document   each function                if    this  scrollTop   gt 0                    el     this                    return false                               return el      alert grab   scrollTop       In Google chrome it would get us the body  in IE - HTML     Note  we don t need to set overflow auto explicitly on our html or body that way

User · Answer

It worked for me  just leave it to the jQuery      html body   animate   scrollTop  0    1     Basically you should know the browser and write the code considering browser differences  Since jQuery is cross-browser it should handle the first step  And finally you fake the js-engine of the browser by animating the scrolling in 1 millisecond

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Indeed  seems like animation is required to make it work in Safari  I ended up with   if   browser safari       bodyelem      body    else      bodyelem      html body     bodyelem animate  scrollTop 0   queue false  duration 100  easing  linear   complete callbackFunc

User · Answer

It s not really a bug  just a difference in implantation by the browser vendors    As a rule avoid browser sniffing  There is a nifty jQuery fix which is hinted at in the answers   This is what works for me     html not  animated  body not  animated    scrollTop

[javascript] jQuery scrollTop() doesn't seem to work in Safari or Chrome (Windows)

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