I have to convert the xml using the xslt in Angular. I got the result for conversion, but when I bind result to div with [innerHTML] an error of [object DocumentFragment] is appearing.
Html code is

<div class="body">
    <div class="container-fluid p-0">
    <div id="xmlcontent" [innerHTML]="xmlcontent">
    </div>
    <div id="htmlcontent" [innerHTML]="htmlcontent">
    </div>
</div>
<button type="button" (click)="convert()">xml to html</button>
<br/>
<button type="button" (click)="getHtmlFile()">html content</button>
</div>

TS code is

export class XmlconvertComponent implements OnInit {
  _httpClient!: HttpClient;
  xmlcontent:any;
  htmlcontent: any;
  sanitizer!: DomSanitizer;
  convert() {
    const xml = this.loadXMLDoc("assets/xml/test.xml");
    const xsl = this.loadXMLDoc("assets/xml/test.xsl");
    const xsltProcessor = new XSLTProcessor();
    xsltProcessor.importStylesheet(xsl);
    const resultDocument = xsltProcessor.transformToFragment(xml, document);
//document.getElementById("xmlcontent")?.appendChild(resultDocument);
    this.xmlcontent=resultDocument;
  }
  constructor(_httpClient: HttpClient) { 

  }
  ngOnInit(): void {
  }

  loadXMLDoc(filename: any): any {
    const xhttp = new XMLHttpRequest();
    xhttp.open("GET", filename, false);
    try { xhttp.responseType = 'document' } catch (err) { } // Helping IE11
    xhttp.send("");
    return xhttp.responseXML;
  }

  getHtmlFile() {
    let path = 'assets/xml/test.html';
    this._httpClient.get(path, {responseType: "text"}).subscribe(
      data => {
        this.htmlcontent = this.sanitizer.bypassSecurityTrustHtml(data);
      });
  }

Please note, when i use this code “document.getElementById("xmlcontent")?.appendChild(resultDocument);“, I got the output, but when I click again the same content is repeated.
Can someone help me to display the conent in

<div id="xmlcontent" [innerHTML]="xmlcontent">
        </div>

Also one more issue i am facing in getHtmlFile() function.

ERROR TypeError: Cannot read properties of undefined (reading 'get')

Can help for this issue also