1 files changed, 41 insertions, 0 deletions
diff --git a/packages/webapi/src/lib/Observer.ts b/packages/webapi/src/lib/Observer.ts
new file mode 100644
index 000000000..845de1312
--- /dev/null
+++ b/packages/webapi/src/lib/Observer.ts
@@ -0,0 +1,41 @@
+import * as _ from './utils'
+
+export class IntersectionObserver {
+	disconnect() {}
+
+	observe() {}
+
+	takeRecords() {
+		return []
+	}
+
+	unobserve() {}
+}
+
+export class MutationObserver {
+	disconnect() {}
+
+	observe() {}
+
+	takeRecords() {
+		return []
+	}
+
+	unobserve() {}
+}
+
+export class ResizeObserver {
+	disconnect() {}
+
+	observe() {}
+
+	takeRecords() {
+		return []
+	}
+
+	unobserve() {}
+}
+
+_.allowStringTag(MutationObserver)
+_.allowStringTag(IntersectionObserver)
+_.allowStringTag(ResizeObserver)