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[scoped-custom-elements-polyfill]: Timeline for Native or Cross-Browser Support of Scoped Custom Elements

Status: Open.

#648 In webcomponents/polyfills;

· biratdatta opened on Mar 2, 2026

[ShadowDOM] Implement moveBefore()

Focus Area: Standards & Polyfills

Type: FeatureNew feature or requestNew feature or request

Status: Open.

#631 In webcomponents/polyfills;

· justinfagnani opened on Sep 29, 2025

[scoped-custom-elements-polyfill]: HTMLFormControlsCollection overwritten with a version that does not support the iterator protocol

Focus Area: Standards & Polyfills

Type: Bug

Status: Open.

#619 In webcomponents/polyfills;

· lennartbuit opened on Apr 3, 2025

[scoped-custom-element-registry] Pulling in from multiple components on a page results in "Illegal constructor (custom element class..." error.

Focus Area: Standards & Polyfills

Type: Bug

Status: Open.

#615 In webcomponents/polyfills;

· jmurrayri opened on Mar 4, 2025

[scoped-custom-element-registry] customize() eagerly swallows any exception and causes a confusing error message

Focus Area: Standards & Polyfills

Type: Bug

Status: Open.

#608 In webcomponents/polyfills;

· denilsonsa opened on Feb 24, 2025

[scoped-custom-element-registry] Non-string Values Are Not Properly Stringified Before Calling attributeChangedCallback in setAttribute

Focus Area: Standards & Polyfills

Type: Bug

Status: Open.

#607 In webcomponents/polyfills;

· oscarmarina opened on Jan 24, 2025

[scoped-custom-element-registry] Update to match new revamped proposal

Focus Area: Standards & Polyfills

Type: FeatureNew feature or requestNew feature or request

Status: Open.

#603 In webcomponents/polyfills;

· sorvell opened on Dec 19, 2024

[scoped-custom-element-registry] When used, elements defined globally remain undefined

Focus Area: Standards & Polyfills

Type: Bug

Status: Open.

#602 In webcomponents/polyfills;

· tpluscode opened on Dec 16, 2024

[scoped-custom-element-registry] getName is undefined

Focus Area: Standards & Polyfills

Type: Bug

Status: Open.

#596 In webcomponents/polyfills;

· coening opened on Sep 30, 2024

[scoped-custom-element-registry] Release date for new version of scoped-custom-element-registry?

Focus Area: Standards & Polyfills

Type: FeatureNew feature or requestNew feature or request

Status: Open.

#593 In webcomponents/polyfills;

· oscarmarina opened on Sep 20, 2024

not a bug , but Any guide on how to make this library work, using vite.js and ES6 modules?.

Focus Area: Standards & Polyfills

Type: FeatureNew feature or requestNew feature or request

wontfix

Status: Open.

#586 In webcomponents/polyfills;

· moonhuntercode opened on Jul 13, 2024

Not a Bug but a Question

Focus Area: Standards & Polyfills

Type: Bug

wontfix

Status: Open.

#584 In webcomponents/polyfills;

· deepanshumehtaa opened on Jun 7, 2024