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Graph/portal-unstable-remount-side-effects

AntiPattern

Uncontained Render Side-Effects

portal-unstable-remount-side-effects

A recurring UI pattern where components rendered via portals/unstable React updates trigger unexpected focus or scroll behavior (e.g., iframe top jump or input focus loss) because the dropdown or edited fields remount outside intended layout/state boundaries.

Node Details

Public graph metadata

Updated5/1/2026

Connections

30 linked nodes

MATCHESSolution

Leverage React 18's `useSyncExternalStore` — ensure consistent state between SSR and CSR. Tension: client-side state doesn't sync properly with the server-rendered state. Outcome: to ensure consistent state between SSR and CSR.

MATCHESSolution

removing the `[state=open]:animate-in` from both `DialogPrimitive.Overlay` and `DialogPrimitive.Content` fixed the problem for me — Dialog box component in my React application using Shadcn UI. Tension: While this fixed the flickering issue, I'm wondering if there's a better or more elegant solution. Outcome: removed the animation-related classes from the DialogPrimitive.Content component.

MATCHESSolution

Tension: prevents you from interact with other elements. Outcome: working playground: https://stackblitz.com/edit/stackblitz-starters-gl6ghw?description=The%20React%20framework%20for%20production&file=app%2Fpage.tsx,app%2Fglobals.css&title=Next.js%20Starter.

MATCHESSolution

Instead of `useRef`, we can change it to `useState` — for a DOM node that may not exist or change during the component's render. Tension: so that we can track ref changes in the state and trigger re-renders as needed.

MATCHESSolution

Handle Radix Popover’s onOpenAutoFocus (or equivalent) and call event.preventDefault() to prevent the Popover from stealing focus from the Input when it opens.

MATCHESSolution

Replace the custom components with HTML elements so the state updates work as expected

MATCHESSolution

Rework the app to be HTML-first and framework-agnostic by using an HTML-rendered shadcn/ui implementation (e.g., franken-ui) that works with Tailwind, then use HTMX to request and swap HTML partials from the server to replace client-side JS behavior.

MATCHESSolution

Function components cannot be given refs. — when I'm trying to use this as a slot for other MUI component. Tension: Attempts to access this ref will fail. Outcome: Did you mean to use React.forwardRef()?

MATCHESSolution

Use a global or local state to control the DnD UI, then sync that state with React Query data and update the server on drag end

MATCHESSolution

make sure that the form component is only rendered after data is ready — Decouple the data fetching component from the form component. Tension: background refetches will not be reflected. Outcome: if your cache already has stale data when `App` mounts, you'll get that data in your state.

MATCHESSolution

rendering the rows as a non complex component like a spinner or something — my laggy components were loading in as i scrolled etc. Tension: excessive blanking of the page. Outcome: using useEffect to determine if it is fully rendered, you can resolve most of the major blanking issues.

MATCHESSolution

useEffect(). Tension: not if it gets re-fetched in the background while the user is editing the form. Outcome: without it?

MATCHESSolution

useIsFocused hook of react navigation and react query enabled condition — import { useIsFocused } from '@react-navigation/native';. Tension: not refetch everytime I focus on screen. Outcome: enabled: isFocused, retry: false.

MATCHESSolution

Render the tooltip Content inside a Radix Portal (wrap the Tooltip content in a Portal) so it mounts above the sticky elements and remains visible.

MATCHESSolution

Wrap you components that rely on React Query data — React Query data. Outcome: with Suspense and HydrationBoundary.

MATCHESSolution

Worked around the issue by passing scrollYProgress to the LiIcon component instead of passing the ref — const { scrollYProgress } = useScroll({ target: ref, offset: ['center end', 'center center'], });. Tension: the circles seem to be using all the same ref. Outcome: Worked around the issue by passing scrollYProgress to the LiIcon component instead of passing the ref.

MATCHESSolution

No ref to prevent redundant state updates — `setState` inside an observer callback that runs on every scroll event. Tension: React still processes the `setState` call even if the value is the same. Outcome: const lastIdRef = useRef(null);.

MATCHESSolution

the content of the dock gets changed according to the new chat room (even though it's only for a split second) then closes — When I'm in one of the chat rooms, I can change chat rooms by clicking on the other chat rooms. Outcome: place the navigation action in a short timeout so it's placed at the end of Javascript's event loop and allows the dispatched actions to process and React to rerender once.

MATCHESSolution

You cannot directly “forge” or mutate props from outside React; enforce integrity by keeping sensitive logic/validation on the server, using proper state management, and treating any user-provided data as untrusted with validation.

MATCHESSolution

Adjust/remedy the COOP configuration so the iframe/popup context does not enter the 'new with no opener' rule (e.g., relax COOP or ensure same-origin/top-level origin alignment), so window.open will return a window reference instead of null.

MATCHESSolution

Disable the portal for the Select component by setting `disablePortal` (or otherwise render the menu without a portal) so the dropdown is contained within the iframe layout.

MATCHESSolution

Trigger focus after readOnly updates—e.g., set a flag on double-click and call focus in a useEffect (or a callback) once readOnly is false.

MATCHESSolution

You can create a scrollable tooltip : — external HTML tooltip referencing the official document. Tension: I am not sure how to make it scrollable. Outcome: import React, { useEffect, useRef, useState } from "react";.

MATCHESSolution

Call all hooks unconditionally at the top of the component (e.g., move useParams() above the ready/user checks) and only render conditional UI afterward; optionally use nested routes for subpages instead of relying on conditional logic.

MATCHESSolution

One of those pages contains a MUI Select component. Tension: I can't figure away around that restriction.

MATCHESSolution

Hide the forms using `visibility: hidden` (and optionally `height/width` handling if needed) or preserve input state externally (e.g., React state) so values persist across visibility changes.

MATCHESSolution

Render the dropdown panel within the modal’s DOM flow by setting `appendTo="self"` on the PrimeReact Dropdown (and ensure the modal/container stacking context allows interaction).

MATCHESSolution

resize events often occur as many events in quick succession. Tension: the resize behaviour is also a little broken. Outcome: React queues the update.

MATCHESSolution

Move the reset logic into a useEffect (or handle reset from the parent via props) so state updates occur as effects rather than during render. In the parent, toggle the reset flag (and optionally set it back to false after the update) to trigger the child's reset without causing continuous re-renders.

MATCHESSolution

BuildHash controls when the panel re-renders. — s&box UI uses Razor (.razor files) paired with PanelComponent. Tension: Key patterns:. Outcome: StateHasChanged();.

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