How to get Ionic 4 PWA crawled by Googlebot

@kingjd wrote:

Ionic:

ionic (Ionic CLI) : 4.11.0 (C:\Users…\AppData\Roaming\npm\node_modules\ionic)
Ionic Framework : @ionic/angular 4.1.0-dev.201902142010.08fe8e4
@angular-devkit/build-angular : 0.12.2
@angular-devkit/schematics : 7.1.4
@angular/cli : 7.1.4
@ionic/angular-toolkit : 1.2.2

Cordova:

cordova (Cordova CLI) : not installed
Cordova Platforms : android 7.1.4, browser 5.0.4, ios 4.5.5
Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 2.3.2, (and 10 other plugins)

System:

Android SDK Tools : 26.1.1 (C:\Users…\AppData\Local\Android\Sdk)
NodeJS : v10.15.1 (C:\Program Files\nodejs\node.exe)
npm : 6.4.1
OS : Windows 10
Hi,
I have built an Ionic 4 PWA and I would like to get the entire PWA crawled by Google. There are currently about 40 pages but I expect there to eventually be hundreds of pages .
Before I built the app I saw several PWA/Ionic sites saying that Ionic 4 PWAs are discoverable/crawlable by Googlebot. For example:

However I am having trouble with this, my site is in Google but as all I can see in Google cache for the index page of my site is “Please enable JavaScript to continue using this application.”, which is accompanied by a blank white page.
It looks like server side rendering(SSR) may be a solution to the problem but I am using lots of dynamic content which can quickly change a lot.
I am running the site on shared PHP/MySQL hosting so I can’t install any packages from shell. Stencil looks good but I am not sure if it will solve my problem.
My PWA received a SEO score of 100, a Performance score of 94 and a PWA score of 100 in Lighthouse.
I have tried to index different pages from my site in Google Search Console but they all appear as a blank screen in the Screenshot area. I also went to https://technicalseo.com/seo-tools/fetch-render/ which has 32 User-Agents and tried indexing my page on all the popular agents and none of them were able to render my page.
Could this be due to the version of JavaScript that Ionic is running? Or is it a timeout issue? Is a SSR system the solution for this problem and which one would be the best for Ionic 4?
If you want the URL of my site please send me a PM.
Any assistance would be appreciated.

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