Swiper JS Not Responding Same on Two Pages? Here’s the Fix!

Are you stuck with a swiper JS implementation that just refuses to behave consistently across two pages? You’re not alone! This frustration is all too familiar for many developers.

What’s Going On?

Before we dive into the solution, let’s quickly explore the possible reasons behind this discrepancy:

• Different HTML Structures: Perhaps the two pages have slightly different HTML structures, which affect how Swiper JS interacts with the elements.
• JavaScript Load Order: The order in which scripts are loaded can impact how Swiper JS initializes and responds to events.
• Conflicting Libraries or Plugins: Other JavaScript libraries or plugins might be interfering with Swiper JS, causing inconsistent behavior.
• Browser or Device Limitations: Different browsers or devices might render the pages differently, leading to varying Swiper JS responses.

Troubleshooting Steps

Let’s follow a step-by-step approach to identify and resolve the issue:

1. Verify HTML Structures

   Compare the HTML structures of both pages using the browser’s developer tools (F12). Check for any differences in the DOM, such as:

   • Different container elements (<div>, <section>, etc.)
   • Varying numbers of child elements or slides
   • Presence or absence of wrapper elements (e.g., <swiper>, <swiper-container>)

   Update the HTML structures to ensure they match on both pages.

2. Check JavaScript Load Order

   Verify the load order of your JavaScript files, including Swiper JS and any other dependencies. Ensure that:

   • Swiper JS is loaded after the HTML structure has been rendered
   • Other JavaScript files that interact with Swiper JS are loaded in the correct order

   Adjust the script tags or use a module loader like Webpack to control the load order.

3. Identify Conflicting Libraries or Plugins

   Inspect the JavaScript console for any error messages or warnings related to conflicts with other libraries or plugins.

   • Check for any version conflicts between Swiper JS and other dependencies
   • Test Swiper JS in isolation by temporarily removing other libraries or plugins

   Resolve any conflicts by updating versions or reordering script loads.

4. Browser and Device Testing

   Test both pages on different browsers and devices to identify any platform-specific issues.

   • Verify that Swiper JS is working as expected on at least one browser or device
   • Use browser-specific debugging tools to identify any rendering or JavaScript issues

   Apply browser-specific fixes or workarounds as needed.

Additional Tips and Tricks

var swiper = new Swiper('.swiper-container', {
  // your config options
  debugger: true
});

console.log(swiper);