webcomponents/polyfills

Vedi su GitHub

Web Components Polyfills

Stelle: 1.2k
Fork: 168
Issue aperte per principianti: 0
Issue indicizzate: 94

Lingua principale: HTML
Licenza: BSD-3-Clause
Ultimo push su GitHub: 23/2/2026
Ultima indicizzazione: 15/9/2026
Guida per i contributori: Guida per i contributori
Codice di condotta: Nessun codice di condotta
Label per principianti: Nessuna label per principianti indicizzata
Metriche di merge delle PR: Nessuna PR unita negli ultimi 30g

Aperta Tutte

94 issue aperte indicizzate

[ShadyCSS] Cannot load the polyfill async Aperta

Package: shadycss Severity: Low Type: Bug wontfix

webcomponents/polyfills#33 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[Custom Elements] `instanceof Function` doesn't work for functions from other realms. Aperta

Package: custom-elements Severity: Medium Type: Bug

webcomponents/polyfills#105 · 11 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[Custom Elements] Custom element not "recognized" when added with Element.outerHTML Aperta

Package: custom-elements Severity: Medium Type: Feature wontfix

webcomponents/polyfills#106 · 5 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
Missing DocumentOrShadowRoot interface implementation Aperta

webcomponents/polyfills#66 · 15 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
[ShadyCSS] Curlies in styles break the preprocessor Aperta

Package: shadycss Severity: Low Type: Bug wontfix

webcomponents/polyfills#28 · 4 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
[Custom Elements] Callback ordering is incorrect for `Node.prototype.replaceChild`. Aperta

Package: custom-elements Severity: Low Type: Bug wontfix

webcomponents/polyfills#107 · 4 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] Expose prepareTemplate for non template DocumentFragments Aperta

Package: shadycss Severity: Medium Type: Feature wontfix

webcomponents/polyfills#26 · 4 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[Custom Elements] Error in IE11: The custom element being constructed was not registered with `customElements`. Aperta

Package: custom-elements Severity: Medium Type: Bug wontfix

webcomponents/polyfills#108 · 11 commenti · 1 reazione · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] Too specific slotted(*) causes unexpected styling Aperta

Package: shadycss Severity: Medium Type: Bug wontfix

webcomponents/polyfills#24 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] Selectors for slot element does not work Aperta

Package: shadycss Severity: Low Type: Feature wontfix

webcomponents/polyfills#22 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] Specificity issue when mixing straight and module-style CSS Aperta

Package: shadycss Severity: Medium Type: Bug wontfix

webcomponents/polyfills#23 · 4 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] error scoping distributed content Aperta

Package: shadycss Severity: High Type: Bug wontfix

webcomponents/polyfills#20 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] Shadow DOM is not scoped and elements doesn't get `style-scope` when template is cloned after CE definition Aperta

Package: shadycss Package: shadydom Severity: Medium Type: Bug wontfix

webcomponents/polyfills#77 · 4 commenti · 3 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] Mutation Observer callback is not called for shadow hosts Aperta

Focus Area: Standards & Polyfills Package: shadydom Severity: High Type: Bug wontfix

webcomponents/polyfills#81 · 4 commenti · 2 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] Integration with Lit/HyperHtml - Dynamic Class Interpolation Aperta

Package: shadycss Severity: Medium Type: Feature wontfix

webcomponents/polyfills#18 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[Custom Elements] Calling `setAttribute` with a non-lower cased attribute name does not trigger `attributeChangedCallback` Aperta

Severity: Medium Type: Bug wontfix

webcomponents/polyfills#110 · 4 commenti · 2 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
[ShadyCSS] How do we clean up? Aperta

Package: shadycss Severity: Medium Type: Feature wontfix

webcomponents/polyfills#15 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[WCJS] Remove `:unresolved` pseudo selector support Aperta

Package: webcomponentsjs Severity: Medium Type: Feature wontfix

webcomponents/polyfills#60 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] :host() selector containing multiple elements extremely slow when first element has a long name Aperta

More Info Needed Package: shadycss wontfix

webcomponents/polyfills#13 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] Provide option to add custom classname for scoping Aperta

Package: shadycss Severity: Low Type: Feature wontfix

webcomponents/polyfills#12 · 4 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] Add a way update insertion points when `preferPerformance` is set to true Aperta

Package: shadydom Severity: Medium Type: Feature wontfix

webcomponents/polyfills#92 · 2 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
[ShadyDOM] HTMLElement ids don't get scoped Aperta

Package: shadydom Severity: Medium Type: Feature wontfix

webcomponents/polyfills#47 · 4 commenti · 1 reazione · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] dispatchEvent on ShadowRoot throws an exception Aperta

Package: shadydom Severity: High Type: Bug wontfix

webcomponents/polyfills#93 · 2 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
[ShadyDOM] Events dispatched by Light DOM children in connectedCallback cannot be handled Aperta

Package: shadydom Severity: High Type: Bug wontfix

webcomponents/polyfills#94 · 4 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] Edge slots not working if created with uppercase name Aperta

Package: shadydom Severity: Medium Type: Bug wontfix

webcomponents/polyfills#97 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] IE 11 Object doesn't support property or method 'assignedElements' Aperta

Package: shadydom Severity: Medium Type: Feature wontfix

webcomponents/polyfills#46 · 6 commenti · 7 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
[ShadyDOM] Shady DOM breaks angular router in Edge Aperta

Package: shadydom Severity: High Type: Bug wontfix

webcomponents/polyfills#98 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] Polymer.dom(parent).insertBefore(nodeToInsert, refNode) deletes node created by pressing enter key Aperta

Package: shadydom Severity: Medium Type: Bug wontfix

webcomponents/polyfills#101 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[Custom Elements] Finish port of some Custom Elements PRs Aperta

Severity: Medium Type: Feature wontfix

webcomponents/polyfills#138 · 6 commenti · 1 reazione · 1 assegnatario · Indicizzata il 15/9/2026
Multiple calls to `prepareTemplate` don't cascade as expected. Aperta

Package: shadycss wontfix

webcomponents/polyfills#156 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
Implement FormData event Aperta

Epic Focus Area: Standards & Polyfills Severity: Medium Type: Feature

webcomponents/polyfills#172 · 11 commenti · 9 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
shadydom css of one component leaks in other components in Edge18 Aperta

Package: shadycss Package: shadydom Type: Bug wontfix

webcomponents/polyfills#184 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
pollyfill seems to alter jQuery on MSIE11 Aperta

Focus Area: Standards & Polyfills More Info Needed Type: Bug wontfix

webcomponents/polyfills#198 · 3 commenti · 2 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
gecko 48 dispatch 'focus' event but intercept by polyfill Aperta

More Info Needed wontfix

webcomponents/polyfills#227 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyDOM] Allow use of `noPatch` modes without re-ordering polyfills Aperta

Focus Area: Standards & Polyfills Package: shadydom Type: Bug wontfix

webcomponents/polyfills#237 · 2 commenti · 5 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[URL] URL polyfill isn't compatible with the spec: doesn't throw on partial URLs Aperta

Package: url Type: Feature wontfix

webcomponents/polyfills#241 · 6 commenti · 2 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
_element property on Custom Components breaks CSS Custom Properties Aperta

Focus Area: Standards & Polyfills Type: Bug wontfix

webcomponents/polyfills#245 · 3 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
Setting ShadyDOM settings via `ShadyDOM` object and URL flags are incompatible. Aperta

Focus Area: Standards & Polyfills Package: shadydom Type: Bug wontfix

webcomponents/polyfills#250 · 2 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
[WCJS] document.write does not work when webcomponents-loader.js is loaded asynchronously Aperta

Package: webcomponentsjs Severity: Low Type: Bug wontfix

webcomponents/polyfills#251 · 5 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[ShadyCSS] App loading performance issue in Chrome <= 45 Aperta

Focus Area: Standards & Polyfills Package: shadycss Severity: Low Type: Maintenance wontfix

webcomponents/polyfills#257 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
failing shadycss scoping-api and disable-runtime tests Aperta

Focus Area: Standards & Polyfills Package: shadycss Severity: Medium Type: Bug wontfix

webcomponents/polyfills#260 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
window.__shady_native_addEventListener is not a function in versions of Chrome and Firefox Aperta

Package: shadydom Type: Bug

webcomponents/polyfills#279 · 10 commenti · 3 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
[Template] If loaded after DOMContentLoaded, templates aren't upgraded Aperta

Package: template Type: Bug wontfix

webcomponents/polyfills#291 · 2 commenti · 4 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
Supporting ie11 and pass style attribute to the element Aperta

Focus Area: Standards & Polyfills Package: shadycss Type: Feature wontfix

webcomponents/polyfills#295 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
Supporting ie11 and inheritance of css variable with slotted components Aperta

Focus Area: Standards & Polyfills Package: shadycss Type: Bug wontfix

webcomponents/polyfills#296 · 4 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
Object doesn't support property or method '__shady_getRootNode' error thrown in Edge by version 2.2.10 and up. Aperta

Focus Area: Standards & Polyfills Package: shadydom Type: Bug wontfix

webcomponents/polyfills#298 · 2 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
Publish shady-css-scoped-element Aperta

Focus Area: Standards & Polyfills Package: shady-css-scoped-element Type: Maintenance wontfix

webcomponents/polyfills#305 · 2 commenti · 0 reazioni · 0 assegnatari · Indicizzata il 15/9/2026
Explainer for Shadow Parts support for native shadow DOM Aperta

Focus Area: Standards & Polyfills Type: Feature wontfix

webcomponents/polyfills#310 · 2 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
Document shadycss limitation of custom properties and slotted children Aperta

Focus Area: Standards & Polyfills Package: shadycss Type: Maintenance wontfix

webcomponents/polyfills#316 · 2 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026
lit/polymer/polyfills uber test script Aperta

Focus Area: Standards & Polyfills Type: Maintenance wontfix

webcomponents/polyfills#317 · 2 commenti · 0 reazioni · 1 assegnatario · Indicizzata il 15/9/2026

webcomponents/polyfills

Ricevi le nuove issue nella tua casella