Please Update on issue #21394 Angular SSR Flicker

isaiahdahl · January 12, 2022, 9:43pm

Can we get an update on this issue:

bug: SSR, Flickering when ssr page is replaced

opened 09:22AM - 28 May 20 UTC

package: angular ionitron: stale issue

# Bug Report **Ionic version:** [x] *5.0.5* **Current behavior:** When t…he app switches from server side rendered to client side rendered version, there is is a blank screen shown, resulting in a flickering on fast-loading devices. This is not the case when using angular universal without ionic. **Expected behavior:** The user should not recognize the switch, as with original angular universal apps. **Steps to reproduce:** Create Angular SSR application. Add Ionic. **Example** To see it more clearly, check this example (25s video) where I used a slow network speed. Between "IsServer -> IsBrowser", a blank page appears. ![ionic-ssr-flicker](https://user-images.githubusercontent.com/11556950/81408959-7ed35380-913e-11ea-942e-1bb031b80e77.gif) **A sample application via GitHub** [Github Ionic-SSR-Flickering](https://github.com/KevinBassaDevelopment/ionic-ssr-flickering-example) [Github Angular-SSR-No-Flickering](https://github.com/KevinBassaDevelopment/angular-ssr-no-flickering-example) The live examples can be compared here: [Live Ionic SSR example](https://ionic-ssr.bassa-solutions.at/) [Live Angular SSR example](https://angular-ssr.bassa-solutions.at/) I opened a new ticket because my existing ticket was closed as it was initially missing an example. #21245

With the recent release of Ionic 6. Was any headway made?

We believe this flickering issue will be reduced with changes in Ionic Framework v6. Our components will no longer use Stencil’s lazy loading, so the flash of unstyled content should disappear. This should translate into a noticeable improvement in flickering when using Ionic Framework and Angular Universal.

Did this get implemented with Ionic 6?

fcarre1980 · February 28, 2022, 9:10pm

looking for the same here. It’ll be great to know if the flickering has been fixed or we still need to look for workarounds (e.g.: serve SSR to known bot user agents vs. regular client app to users).