Опыт Tecnoblog в работе с комментариями Discourse

Falco · 15.Май.2026 17:09:29

Thiago_Mobilon:

5. Трение при входе

Текущий процесс немного убивает конверсию: пользователь нажимает «Войти» → открывается новая вкладка → происходит вход → пользователь остаётся на главной странице сообщества. Вернувшись к посту в блоге, iframe всё ещё отображается как неавторизованный, пока пользователь вручную не обновит всю страницу. Это запутанный цикл, из-за которого люди отказываются от идеи и уходят, не оставив комментарий.

Поскольку мы активировали новый встроенный элемент, количество ежедневных регистраций более чем удвоилось, что отлично. Однако метрики вовлечённости не изменились. Фактически, показатель DAU/MAU снизился — у нас больше авторизованных пользователей, но они не взаимодействуют. Такие метрики, как «Ежедневные активные пользователи», «Новые участники» и «Количество публикаций», не показали никакого роста.

Это доказывает, что люди хотят присоединиться к обсуждению, но они теряются в цикле входа и покидают пост, не успев оставить комментарий.

Теперь это исправлено. Пожалуйста, обновитесь, чтобы получить новый процесс входа.

github.com/discourse/discourse

FEATURE: Add in-iframe sign-in flow for full app embed mode (#39756)

main ← embed-full-app-signin-flow

merged 04:07PM - 15 May 26 UTC

xfalcox

+644 -4

Previously, full app embeds loaded on a third-party domain could not see the for…um's session cookie, leaving users effectively logged out, and `showLogin` only opened a dead-end `/login` tab the iframe never reacted to. This adds an `embed_full_app_signin_flow` site setting (on by default, gated to full app embed mode) that intercepts logged-out actions inside the iframe with a guided flow: bridge storage access if the iframe's cookie jar is partitioned, then either reload (if the user is already signed in elsewhere) or open a top-level sign-in tab and watch the session via polling. ## Flow 1. User clicks an auth-gated action (Reply CTA, Like, etc.). `showLogin` / `showCreateAccount` and the embed-topic-footer reply CTA route into the new `embed-auth-flow` service. 2. **If `document.hasStorageAccess()` is `false`** — Safari ITP, Firefox Total Cookie Protection, Chrome's 3p cookie phaseout — an in-iframe modal asks the user to share their session. Confirming calls `requestStorageAccess()` (synchronously inside the click handler so user activation is preserved). 3. Once we have access, the service probes `/session/current.json`. If the user is already signed in elsewhere (common Firefox ETP scenario), the iframe reloads to pick up the session — no popup. 4. Otherwise, a sign-in modal opens a top-level `/login?embed_signin_callback=1` (or `/signup`) tab and shows a waiting state with a spinner. The iframe polls `/session/current.json` every 3s for up to 5 min. 5. When polling sees a logged-in response, the iframe reloads. The popup self-closes once it has a session, driven by the `embed_signin_callback` query param + sessionStorage flag. ## Why polling instead of `postMessage` The popup-side callback originally posted a success message back to the opener. Discourse's default `Cross-Origin-Opener-Policy` (`same-origin-allow-popups`) typically mismatches an embedding host's (`unsafe-none`), which severs `window.opener` on the popup's very first load — and any OAuth provider redirect amplifies this. Polling sidesteps the whole opener relationship and works regardless of COOP, OAuth, or the user opening the link in a new tab. ## Setting - `embed_full_app_signin_flow` (boolean, default `true`, in the `embedding` area). - The flow assumes the iframe can receive its cookies after popup sign-in — true when the embed is **same-site to the host page** (any SameSite setting) or when `same_site_cookies = "None"` is configured for cross-site embeds. We trust the admin to enable this only on a compatible deployment. ## Implementation notes - **Browser-agnostic storage access.** `hasStorageAccess()` is the single signal — `true` on same-site/same-origin embeds (no prompt needed), `false` whenever the iframe's cookie jar is partitioned. No browser sniffing. - **User activation preserved.** The modal uses native `<button {{on "click" handler}}>` rather than `service:dialog`, so `requestStorageAccess()` and `window.open()` see a live activation token in the click handler. - **No reload after storage access.** `requestStorageAccess()` grants access for the current document; we chain directly into the next step in the same execution. Reloading would put the iframe back in partitioned mode in most browsers. - **Popup self-close is param-driven, not opener-driven.** The callback initializer keys off `?embed_signin_callback=1` alone — `window.opener` is unreliable thanks to COOP. - **API-unsupported fallback.** Without `document.requestStorageAccess`, the service opens a plain top-level login tab (no callback param) instead of trapping the user in a popup that cannot bridge cookies. - **Storage access denial is a dead-end on purpose.** The catch handler does not chain to a sign-in popup, since a sign-in tab cannot help an iframe that lacks storage access. The user retries the action to be re-prompted. - **Waiting modal.** While polling, the iframe shows a spinner and "Waiting for sign-in" message. Cancel stops the poll and closes the popup; the modal auto-dismisses on timeout. ## Tests `tests/unit/services/embed-auth-flow-test.js` covers gating, the partitioned vs. non-partitioned split, the storage-access → sign-in chain, the already-signed-in → reload path, denial behaviour, popup URL routing, and the API-unsupported fallback.

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Опыт Tecnoblog в работе с комментариями Discourse

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