diff --git a/Build/Sources/TypeScript/backend/form-engine/inline-relation/ajax-dispatcher.ts b/Build/Sources/TypeScript/backend/form-engine/inline-relation/ajax-dispatcher.ts
index e510428c68e86c617d199ac290e6e67cad27adf6..0def5b5207bf91aba7223efc99f3ae00bee95ba6 100644
--- a/Build/Sources/TypeScript/backend/form-engine/inline-relation/ajax-dispatcher.ts
+++ b/Build/Sources/TypeScript/backend/form-engine/inline-relation/ajax-dispatcher.ts
@@ -98,19 +98,16 @@ export class AjaxDispatcher {
       }
     }
 
-    // If there are elements they should be added to the <HEAD> tag (e.g. for RTEhtmlarea):
     if (json.stylesheetFiles) {
-      for (const [index, stylesheetFile] of json.stylesheetFiles.entries()) {
-        if (!stylesheetFile) {
-          break;
-        }
-        const element = document.createElement('link');
-        element.rel = 'stylesheet';
-        element.type = 'text/css';
-        element.href = stylesheetFile;
-        document.querySelector('head').appendChild(element);
-        json.stylesheetFiles.splice(index, 1);
-      }
+      document.querySelector('head').append(
+        ...json.stylesheetFiles.filter(file => file).map(file => {
+          const element = document.createElement('link');
+          element.rel = 'stylesheet';
+          element.type = 'text/css';
+          element.href = file;
+          return element;
+        })
+      );
     }
 
     if (typeof json.inlineData === 'object') {
diff --git a/typo3/sysext/backend/Resources/Public/JavaScript/form-engine/inline-relation/ajax-dispatcher.js b/typo3/sysext/backend/Resources/Public/JavaScript/form-engine/inline-relation/ajax-dispatcher.js
index c9d74db248415aa21df5320f4d49a73c7697337e..83f316bcfa2cec66142828b45776bf14e9f1abcb 100644
--- a/typo3/sysext/backend/Resources/Public/JavaScript/form-engine/inline-relation/ajax-dispatcher.js
+++ b/typo3/sysext/backend/Resources/Public/JavaScript/form-engine/inline-relation/ajax-dispatcher.js
@@ -10,4 +10,4 @@
  *
  * The TYPO3 project - inspiring people to share!
  */
-import AjaxRequest from"@typo3/core/ajax/ajax-request.js";import{JavaScriptItemProcessor}from"@typo3/core/java-script-item-processor.js";import Notification from"@typo3/backend/notification.js";import Utility from"@typo3/backend/utility.js";export class AjaxDispatcher{constructor(e){this.objectGroup=null,this.objectGroup=e}newRequest(e){return new AjaxRequest(e)}getEndpoint(e){if(void 0!==TYPO3.settings.ajaxUrls[e])return TYPO3.settings.ajaxUrls[e];throw'Undefined endpoint for route "'+e+'"'}send(e,t){const s=e.post(this.createRequestBody(t)).then((async e=>this.processResponse(await e.resolve())));return s.catch((e=>{Notification.error("Error "+e.message)})),s}createRequestBody(e){const t={};for(let s=0;s<e.length;s++)t["ajax["+s+"]"]=e[s];return t["ajax[context]"]=JSON.stringify(this.getContext()),t}getContext(){let e;return void 0!==TYPO3.settings.FormEngineInline.config[this.objectGroup]&&void 0!==TYPO3.settings.FormEngineInline.config[this.objectGroup].context&&(e=TYPO3.settings.FormEngineInline.config[this.objectGroup].context),e}processResponse(e){if(e.hasErrors)for(const t of e.messages)Notification.error(t.title,t.message);if(e.stylesheetFiles)for(const[t,s]of e.stylesheetFiles.entries()){if(!s)break;const o=document.createElement("link");o.rel="stylesheet",o.type="text/css",o.href=s,document.querySelector("head").appendChild(o),e.stylesheetFiles.splice(t,1)}if("object"==typeof e.inlineData&&(TYPO3.settings.FormEngineInline=Utility.mergeDeep(TYPO3.settings.FormEngineInline,e.inlineData)),e.scriptItems instanceof Array&&e.scriptItems.length>0){(new JavaScriptItemProcessor).processItems(e.scriptItems)}return e}}
\ No newline at end of file
+import AjaxRequest from"@typo3/core/ajax/ajax-request.js";import{JavaScriptItemProcessor}from"@typo3/core/java-script-item-processor.js";import Notification from"@typo3/backend/notification.js";import Utility from"@typo3/backend/utility.js";export class AjaxDispatcher{constructor(e){this.objectGroup=null,this.objectGroup=e}newRequest(e){return new AjaxRequest(e)}getEndpoint(e){if(void 0!==TYPO3.settings.ajaxUrls[e])return TYPO3.settings.ajaxUrls[e];throw'Undefined endpoint for route "'+e+'"'}send(e,t){const s=e.post(this.createRequestBody(t)).then((async e=>this.processResponse(await e.resolve())));return s.catch((e=>{Notification.error("Error "+e.message)})),s}createRequestBody(e){const t={};for(let s=0;s<e.length;s++)t["ajax["+s+"]"]=e[s];return t["ajax[context]"]=JSON.stringify(this.getContext()),t}getContext(){let e;return void 0!==TYPO3.settings.FormEngineInline.config[this.objectGroup]&&void 0!==TYPO3.settings.FormEngineInline.config[this.objectGroup].context&&(e=TYPO3.settings.FormEngineInline.config[this.objectGroup].context),e}processResponse(e){if(e.hasErrors)for(const t of e.messages)Notification.error(t.title,t.message);if(e.stylesheetFiles&&document.querySelector("head").append(...e.stylesheetFiles.filter((e=>e)).map((e=>{const t=document.createElement("link");return t.rel="stylesheet",t.type="text/css",t.href=e,t}))),"object"==typeof e.inlineData&&(TYPO3.settings.FormEngineInline=Utility.mergeDeep(TYPO3.settings.FormEngineInline,e.inlineData)),e.scriptItems instanceof Array&&e.scriptItems.length>0){(new JavaScriptItemProcessor).processItems(e.scriptItems)}return e}}
\ No newline at end of file