diff --git a/tracker/tracker/package.json b/tracker/tracker/package.json
index 3d30d9917..5699bcdf9 100644
--- a/tracker/tracker/package.json
+++ b/tracker/tracker/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@openreplay/tracker",
   "description": "The OpenReplay tracker main package",
-  "version": "4.0.2",
+  "version": "4.0.1",
   "keywords": [
     "logging",
     "replay"
diff --git a/tracker/tracker/src/main/app/sanitizer.ts b/tracker/tracker/src/main/app/sanitizer.ts
index 62702d20e..20087a197 100644
--- a/tracker/tracker/src/main/app/sanitizer.ts
+++ b/tracker/tracker/src/main/app/sanitizer.ts
@@ -47,11 +47,11 @@ export default class Sanitizer {
 
     if (this.options.domSanitizer !== undefined && isElementNode(node)) {
       const sanitizeLevel = this.options.domSanitizer(node)
-      if (sanitizeLevel > 0) {
-        const maskedSet =
-          sanitizeLevel === SanitizeLevel.Hidden ? this.hiddenContainers : this.obscured
-
-        maskedSet.add(id)
+      if (sanitizeLevel === SanitizeLevel.Obscured) {
+        this.obscured.add(id)
+      }
+      if (sanitizeLevel === SanitizeLevel.Hidden) {
+        this.hiddenContainers.add(id)
       }
     }
   }
diff --git a/tracker/tracker/src/main/utils.ts b/tracker/tracker/src/main/utils.ts
index 52605cb04..b1c2a4e6e 100644
--- a/tracker/tracker/src/main/utils.ts
+++ b/tracker/tracker/src/main/utils.ts
@@ -1,3 +1,5 @@
+const DEPRECATED_ATTRS = { htmlmasked: 'hidden-html', masked: 'obscured' }
+
 export const IN_BROWSER = !(typeof window === 'undefined')
 
 const navigationStart: number | false =
@@ -51,16 +53,15 @@ export function getLabelAttribute(e: Element): string | null {
   return value
 }
 
-export function hasOpenreplayAttribute(e: Element, name: string): boolean {
-  const deprecatedNames = { htmlmasked: 'hidden-html', masked: 'obscured' }
-  const newName = `data-openreplay-${name}`
+export function hasOpenreplayAttribute(e: Element, attr: string): boolean {
+  const newName = `data-openreplay-${attr}`
   if (e.hasAttribute(newName)) {
     // @ts-ignore
-    if (deprecatedNames[name]) {
+    if (DEPRECATED_ATTRS[attr]) {
       deprecationWarn(
         `"${newName}" attribute`,
         // @ts-ignore
-        `"${deprecatedNames[name] as string}" attribute`,
+        `"${DEPRECATED_ATTRS[attr] as string}" attribute`,
         '/installation/sanitize-data',
       )
     }