After removing the div element, the error message 'Cannot read property 'offsetWidth' of undefined or null reference' is displayed

Currently, I am encountering an error on my website stating "Cannot read property 'offsetWidth' of undefined or null reference" after commenting out 2 divs in a bootstrap carousel. The carousel was created by someone who is not available to me at the moment. It's perplexing to see how removing those divs would lead to this error. Interestingly, the error disappears when the divs are left in place.

<!-- Carousel -->
<div id="homepage-slider">
  <div id="feature-wrap">
      <div class="iosSlider">
          <div     class="slider">                                                              
            {2}                
            <div class="item" id="2">
                <a href="{0}/{1}/products/test1"><img     src="{0}/Content/images/home/index/myPic.jpg" style="width: 100%;" /></a>
            </div>
            <div class="item" id="3">
                <a href="{0}/{1}/products/test2"><img src="{0}/Content/images/home/index/myPic2.jpg" style="width: 100%;" /></a>
            </div>
            <div class="item" id="4">                    
                <a href="https://myPage.myCompany.com/"     target="_blank"><img src="{0}/Content/images/home/index/myPic3.jpg"     style="width: 100%;" /></a>
            </div>  <!-- Commenting out this div         -->                          
          </div>
          <div class="iosSliderButtons">                
              {3}  
              <div class="button"></div>
              <div class="button"></div>
              <div class="button"></div> <!-- Commenting out this div -->
          </div>
      </div>
      <div id="nextSlide"></div>
      <div id="previousSlide"></div>
    </div>
</div>

This particular block of HTML gets invoked from another file called Index.cshtml in the following manner:

 <div id="view-home">
 @Html.Raw(Resources.HtmlContent.HomePageContent.FormatWith(host, 

 currentWebAlias, myHTML1, myHTML2))
 </div>

The values for myHTML1 and myHTML2 are defined earlier in that same file, and this chunk of HTML is utilized to replace the placeholders (marked {2} and {3}) in the above-mentioned page.

Additionally, I'm also facing a similar issue regarding 'unobtrusive'. Everything functions properly when the divs remain uncommented, but it's baffling why these errors surface once the divs are removed.

I'd highly appreciate any assistance!

Answer №1

Disabling a div element through commenting can lead to complications as it is essential for the functioning of the carousel plugin. This may result in an error due to JavaScript being unable to locate the undefined element, causing issues when trying to access its properties.

The developer who created this plugin likely did not expect users to alter its structure, leading to potential errors.

This particular property plays a crucial role in calculating slide effects for the carousel plugin. For further information, you can refer to this link https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/offsetWidth

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