Experiência do Tecnoblog com comentários no Discourse

Falco · Abril 15, 2026, 8:28pm

Essa é uma ótima ideia, vou adicionar suporte nativo para isso

github.com/discourse/discourse

PERF: Lazy load full app embed iframe with IntersectionObserver (#39299)

main ← perf/lazy-load-full-app-embed

merged 02:45PM - 16 Apr 26 UTC

xfalcox

+26 -3

## Summary - Defer loading the Discourse iframe for full app embeds until the u…ser scrolls near it - Feature detect `IntersectionObserver` — fall back to immediate loading if unavailable - Default margin of 1000px to give the heavy PWA time to load before the user reaches it - On by default for `fullApp` embeds, opt out with `lazyLoad: false` - Configurable margin via `lazyLoadMargin` - Show options in the admin embedding code snippet ## How it works The iframe element is appended to the DOM immediately (preserving layout space with `embedHeight`), but its `src` is not set until the `IntersectionObserver` fires. The default 1000px margin gives Discourse a head start on loading before the user actually scrolls to the embed. ```js DiscourseEmbed = { discourseUrl: 'https://forum.example.com/', topicId: 123, fullApp: true, // lazyLoad: false, // disable lazy loading of the iframe // lazyLoadMargin: '1000', // pixels before viewport to start loading }; ``` ## Test plan - [ ] Full app embed below the fold — verify iframe doesn't load until scrolling near it - [ ] Full app embed above the fold — verify it loads immediately (IntersectionObserver fires right away) - [ ] `lazyLoad: false` — verify immediate loading, same as current behavior - [ ] Custom `lazyLoadMargin` — verify the margin is respected - [ ] Standard (non-full-app) embed — verify unchanged behavior (always loads immediately) - [ ] Browser without IntersectionObserver — verify falls back to immediate loading

Tópico		Respostas	Visualizações
Embed Discourse comments on another website via Javascript Integrations embedding , how-to	127	305383	2 de Junho de 2026
Embed Discourse comments with on-page commenting? Feature	32	8297	19 de Janeiro de 2019
Discourse Comments stuck on "Loading..." Support	22	2308	18 de Setembro de 2024
Should Discourse make an effort to become a viable comment platform? Community Building	62	5781	25 de Março de 2026
Cannot get embedding to work Support	11	2687	31 de Agosto de 2021

Experiência do Tecnoblog com comentários no Discourse

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