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<code>RenderedObserver</code> does not work with <code>display: contents</code> element

Status: Open.

#140 In LeaVerou/style-observer;

· benface opened on Feb 10, 2026

The <code>StyleObserver</code> constructor doesn't accept single values as the values of the <code>properties</code> and <code>targets</code> options

Status: Open.

#136 In LeaVerou/style-observer;

· DmitrySharabin opened on Jul 19, 2025

Perf optimization: Allow passing a property definition

enhancementNew feature or requestNew feature or request

Status: Open.

#134 In LeaVerou/style-observer;

· LeaVerou opened on Jun 9, 2025

Document that any custom property being observed must had been set before observer

bugSomething isn't workingSomething isn't working

Status: Open.

#133 In LeaVerou/style-observer;

· n0099 opened on Jun 7, 2025

High performance option (<code>oldValues</code>?)

enhancementNew feature or requestNew feature or request

Status: Open.

#126 In LeaVerou/style-observer;

· LeaVerou opened on Jun 1, 2025

Generalize the shadow host handling via a <code>selector</code> option?

Status: Open.

#125 In LeaVerou/style-observer;

· LeaVerou opened on Jun 1, 2025

Existing transition is overwritten in Firefox when there is more than one <code>transition-property</code>

Status: Open.

#113 In LeaVerou/style-observer;

· benface opened on May 19, 2025

Provide method third-party scripts can call which check which properties have changed and fires the callback if any

enhancementNew feature or requestNew feature or request

Status: Open.

#88 In LeaVerou/style-observer;

· LeaVerou opened on Feb 21, 2025

An idea for how we can observe changes caused due to animations

enhancementNew feature or requestNew feature or request

Status: Open.

#87 In LeaVerou/style-observer;

· LeaVerou opened on Feb 21, 2025

Implement <code>immediate</code> option

Status: Open.

#45 In LeaVerou/style-observer;

· LeaVerou opened on Feb 5, 2025

Undocumented browser bugs

Status: Open.

#42 In LeaVerou/style-observer;

· DmitrySharabin opened on Feb 4, 2025