EDS and universal editor integration in AEMaaCS - getting error "Couldn't connect to the page" when opening universal editor | Community
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kapil_rajoria
Community Advisor
kapil_rajoriaCommunity Advisor
Community Advisor
August 18, 2025
Solved

EDS and universal editor integration in AEMaaCS - getting error "Couldn't connect to the page" when opening universal editor

  • August 18, 2025
  • 1 reply
  • 964 views

Hi all, 

I followed this tutorial (EDS site via EDS template using Universal Editor in AEMaaCS - no doc authoring): https://www.aem.live/developer/ue-tutorial?lang=en#create-github-project  and followed each step exactly as mentioned but I am getting the below error page when opening the index page in universal editor:


I also tried adding these in head tag but all in vain: (https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/implementing/developing/universal-editor/getting-started )

<meta name="urn:adobe:aue:system:aemconnection" content="aem:https://author-x-y.adobeaemcloud.com"> <meta name="urn:adobe:aue:system:fcsconn" content="fcs:https://author-x-y.adobeaemcloud.com"> <meta name="urn:adobe:aue:system:fcsconnection" content="fcs:https://example.franklin.adobe.com/345fcdd"> <script src="https://universal-editor-service.adobe.io/cors.js" async></script>

 
I can't find any other resources regarding the integration. Can anyone help regarding this?
 
@daniel-strmecki @shiv_prakash_patel @martin_buergi_adobe @raphaelwe 

Best answer by dirudo

First thing you should try is to update to the latest AEM CS release. It will show you a meaningful error message to help you investigate the issue instead of the blank page. A few possible issues are:

 

(1) The repository you are using was not synced with Edge Delivery Services (AEM Code Sync app not installed), or the code sync was incomplete. There are 4 files that are essential for AEMCS to render any page for editing in Universal Editor, which are head.html, component-models.json, component-defintion.json and component-filters.json. All of them must be available on your Edge Delivery site.

 

(2) Your AEMCS instance is generally outdated: in the past AEM used .hlx.page to retrieve these files, which has been deprecated and new sites are not even provisioned for it anymore since a longer time already. It may be that your AEMCS version is too and does use .aem.page.

1 reply

D
Adobe Employee
dirudoAdobe EmployeeAccepted solution
Adobe Employee
August 18, 2025

First thing you should try is to update to the latest AEM CS release. It will show you a meaningful error message to help you investigate the issue instead of the blank page. A few possible issues are:

 

(1) The repository you are using was not synced with Edge Delivery Services (AEM Code Sync app not installed), or the code sync was incomplete. There are 4 files that are essential for AEMCS to render any page for editing in Universal Editor, which are head.html, component-models.json, component-defintion.json and component-filters.json. All of them must be available on your Edge Delivery site.

 

(2) Your AEMCS instance is generally outdated: in the past AEM used .hlx.page to retrieve these files, which has been deprecated and new sites are not even provisioned for it anymore since a longer time already. It may be that your AEMCS version is too and does use .aem.page.

    kapil_rajoria
    Community Advisor
    kapil_rajoriaCommunity AdvisorAuthor
    Community Advisor
    August 18, 2025

    Thanks, worked fine after I updated my AEM CS. 

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