Is fixed-sticky still maintained?

No, fixed-sticky is deprecated and no longer maintained. The developers retired it due to widespread native browser support for position: sticky, and they recommend using alternatives like Stickybits for current projects.

How does fixed-sticky compare to Stickybits?

Fixed-sticky was an early polyfill focused on close native mimicry but is now deprecated. Stickybits is a more modern, actively maintained library with broader feature support and better compatibility, making it the better choice for new implementations.

How to implement a sticky header with fixed-sticky?

To use fixed-sticky, include the JavaScript file, apply CSS position: sticky for modern browsers, and let the polyfill handle unsupported ones. However, since it's deprecated, it's advisable to use native CSS or a modern polyfill like Stickybits instead.

What browsers did fixed-sticky support?

Fixed-sticky targeted browsers without native position: sticky, such as older versions of Internet Explorer and early mobile browsers. Specific details are in the deprecated documentation, but native support is now prevalent across modern browsers.

Does fixed-sticky work with parent elements that have overflow?

No, fixed-sticky does not support sticky elements within parent containers with overflow properties, which is a key limitation compared to native sticky behavior and restricts its use in certain layouts.

Why was fixed-sticky deprecated?

Fixed-sticky was deprecated because the need for polyfills diminished as native browser support for position: sticky expanded. The maintenance costs no longer justified supporting the shrinking user base on unsupported browsers.

Are there alternatives for Internet Explorer support?

For Internet Explorer support, consider using actively maintained libraries like Stickybits or custom JavaScript solutions, as fixed-sticky is deprecated and may not be reliable or secure for current IE environments.

Open-Awesome

Fixed-sticky

MITJavaScript

A deprecated polyfill for CSS position: sticky with a safer position: fixed fallback.

GitHub

1.5k stars148 forks0 contributors

What is Fixed-sticky?

Fixed-sticky is a deprecated JavaScript polyfill that implemented CSS `position: sticky` functionality in browsers without native support. It solved the problem of creating elements that stick to the viewport during scroll (like sticky headers) by providing a cross-browser compatible solution, integrating with `fixed-fixed` for a more robust fixed-position fallback.

Target Audience

Frontend developers and web designers who needed to implement sticky UI elements in projects requiring support for older browsers before native `position: sticky` was widely available.

Value Proposition

Developers chose Fixed-sticky because it offered a straightforward polyfill that closely mimicked native sticky behavior, with a focus on safety through its integration with `fixed-fixed` to avoid common fixed-position pitfalls, though it is now deprecated due to improving browser support.

Overview

DEPRECATED: A position: sticky polyfill that works with filamentgroup/fixed-fixed for a safer position:fixed fallback.

Use Cases

Best For

Adding sticky navigation bars in legacy browser projects
Polyfilling CSS position: sticky for Internet Explorer support
Implementing scroll-aware UI elements without native CSS support
Enhancing scroll experiences with progressive enhancement
Learning how sticky positioning polyfills work
Maintaining older websites with sticky component requirements

Not Ideal For

New projects targeting only modern browsers with native position: sticky support
Teams requiring ongoing maintenance and security updates
Implementations needing sticky elements within parent containers with overflow properties
Use cases involving HTML table headers or footers (thead, tfoot)

Pros & Cons

Pros

Close Native Mimicry

Accurately replicated CSS position: sticky behavior, including parent dimension awareness as demonstrated in the demo GIFs, ensuring elements stuck only within parent bounds.

Safe Fixed Fallback

Integrated with fixed-fixed to provide a reliable position: fixed fallback, reducing common layout issues like jumping or misalignment in older browsers.

Progressive Enhancement Focus

Designed to enhance user experience in unsupported browsers while allowing native CSS in modern ones, aligning with best practices for backward compatibility.

Lightweight Implementation

Offered a minimal JavaScript polyfill without heavy dependencies, making it straightforward to integrate into existing projects for legacy support.

Cons

Deprecated and Unmaintained

Officially deprecated with no updates, NPM warnings, and recommendations to use alternatives, making it risky for current projects due to potential security or compatibility issues.

Limited Feature Support

Does not support sticky elements with parent overflow or with thead and tfoot elements, as admitted in the README, restricting its use in complex layouts.

Obsolete Browser Targeting

Focused on polyfilling for older browsers like Internet Explorer that now have minimal market share, reducing its relevance in today's web development landscape.

Frequently Asked Questions

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