diff --git a/frontend/.eslintrc.js b/frontend/.eslintrc.js
index 030ea66b76..dbbec2e87b 100644
--- a/frontend/.eslintrc.js
+++ b/frontend/.eslintrc.js
@@ -125,6 +125,9 @@ module.exports = {
           },
         ],
 
+        // Allow writing type union and type intersections without space
+        "@typescript-eslint/space-infix-ops": "off",
+
         // Allow empty interfaces for naming purposes (HAL resources)
         "@typescript-eslint/no-empty-interface": "off",
 
diff --git a/frontend/src/app/shared/components/storages/services/upload-storage-files.service.ts b/frontend/src/app/shared/components/storages/services/upload-storage-files.service.ts
index dd6f4f2d99..e5cd0abbfe 100644
--- a/frontend/src/app/shared/components/storages/services/upload-storage-files.service.ts
+++ b/frontend/src/app/shared/components/storages/services/upload-storage-files.service.ts
@@ -72,18 +72,19 @@ export class UploadStorageFilesService {
   }
 
   private parseXmlResponse(xml:string):IStorageFile {
+    const response = new DOMParser().parseFromString(xml, 'application/xml');
     const error = new Error(`Invalid response for uploaded file: ${xml}`);
 
-    const id = /<oc:fileid>(.*)<\/oc:fileid>/.exec(xml)?.pop();
+    const id = response.getElementsByTagName('oc:fileid')[0].textContent;
     if (!id) { throw error; }
 
-    const mimeType = /<d:getcontenttype>(.*)<\/d:getcontenttype>/.exec(xml)?.pop();
+    const mimeType = response.getElementsByTagName('d:getcontenttype')[0].textContent;
     if (!mimeType) { throw error; }
 
-    const size = /<oc:size>(.*)<\/oc:size>/.exec(xml)?.pop();
+    const size = response.getElementsByTagName('oc:size')[0].textContent;
     if (!size) { throw error; }
 
-    const href = /<d:href>(.*)<\/d:href>/.exec(xml)?.pop();
+    const href = response.getElementsByTagName('d:href')[0].textContent;
     const parts = href?.split('/');
     if (!parts || parts.length < 1) { throw error; }
 
@@ -92,12 +93,12 @@ export class UploadStorageFilesService {
 
     const location = `/${parts.slice(parts.indexOf('webdav') + 1).join('/')}`;
 
-    const date = /<d:getlastmodified>(.*)<\/d:getlastmodified>/.exec(xml)?.pop();
+    const date = response.getElementsByTagName('d:getlastmodified')[0].textContent;
     if (!date) { throw error; }
     const createdAt = this.timezoneService.parseDatetime(date).toISOString();
     const lastModifiedAt = createdAt;
 
-    const creator = /<oc:owner-display-name>(.*)<\/oc:owner-display-name>/.exec(xml)?.pop();
+    const creator = response.getElementsByTagName('oc:owner-display-name')[0].textContent;
     if (!creator) { throw error; }
 
     return {
@@ -114,16 +115,15 @@ export class UploadStorageFilesService {
   }
 
   private get propfindBody() {
-    return `
-    	<?xml version="1.0"?>
-        <d:propfind xmlns:d="DAV:" xmlns:oc="http://owncloud.org/ns" xmlns:nc="http://nextcloud.org/ns">
-          <d:prop>
-            <oc:fileid />
-            <d:getlastmodified />
-            <d:getcontenttype />
-            <oc:size />
-            <oc:owner-display-name />
-            </d:prop>
-        </d:propfind>`;
+    return `<?xml version="1.0"?>
+            <d:propfind xmlns:d="DAV:" xmlns:oc="http://owncloud.org/ns" xmlns:nc="http://nextcloud.org/ns">
+              <d:prop>
+                <oc:fileid />
+                <d:getlastmodified />
+                <d:getcontenttype />
+                <oc:size />
+                <oc:owner-display-name />
+                </d:prop>
+            </d:propfind>`;
   }
 }
diff --git a/frontend/src/app/shared/components/storages/storage/storage.component.ts b/frontend/src/app/shared/components/storages/storage/storage.component.ts
index 8e454536ee..01086a7fdb 100644
--- a/frontend/src/app/shared/components/storages/storage/storage.component.ts
+++ b/frontend/src/app/shared/components/storages/storage/storage.component.ts
@@ -142,7 +142,7 @@ export class StorageComponent extends UntilDestroyedMixin implements OnInit, OnD
   }
 
   private get addFileLinksHref() {
-    return (this.resource.$links as unknown & { addFileLink:IHalResourceLink }).addFileLink.href;
+    return (this.resource.$links as unknown&{ addFileLink:IHalResourceLink }).addFileLink.href;
   }
 
   constructor(
@@ -185,7 +185,7 @@ export class StorageComponent extends UntilDestroyedMixin implements OnInit, OnD
 
     this.allowEditing$ = this
       .currentUserService
-      .hasCapabilities$('file_links/manage', (this.resource.project as unknown & { id:string }).id);
+      .hasCapabilities$('file_links/manage', (this.resource.project as unknown&{ id:string }).id);
 
     document.body.addEventListener('dragover', this.onGlobalDragOver.bind(this));
     document.body.addEventListener('dragleave', this.afterGlobalDragEnd.bind(this));
@@ -231,7 +231,7 @@ export class StorageComponent extends UntilDestroyedMixin implements OnInit, OnD
     this.openSelectLocationDialog(fileList);
   }
 
-  private openSelectLocationDialog(files:FileList | null):void {
+  private openSelectLocationDialog(files:FileList|null):void {
     const locals = {
       storageType: this.storage._links.type.href,
       storageTypeName: this.storageType,
@@ -284,7 +284,7 @@ export class StorageComponent extends UntilDestroyedMixin implements OnInit, OnD
   }
 
   private uploadResourceLink(fileName:string, location:string):IPrepareUploadLink {
-    const project = (this.resource.project as unknown & { id:string }).id;
+    const project = (this.resource.project as unknown&{ id:string }).id;
     const link = this.storage._links.prepareUpload.filter((value) => project === value.payload.projectId.toString());
     if (link.length === 0) {
       throw new Error('Cannot upload to this storage. Missing permissions in project.');
@@ -369,7 +369,7 @@ export class StorageComponent extends UntilDestroyedMixin implements OnInit, OnD
   }
 
   private get fileLinkSelfLink():string {
-    const fileLinks = this.resource.fileLinks as unknown & { href:string };
+    const fileLinks = this.resource.fileLinks as unknown&{ href:string };
     return `${fileLinks.href}?filters=[{"storage":{"operator":"=","values":["${this.storage.id}"]}}]`;
   }