diff --git a/src/client/client.ts b/src/client/client.ts
index 6281849..09a50da 100644
--- a/src/client/client.ts
+++ b/src/client/client.ts
@@ -68,8 +68,10 @@ export class ScramjetClient {
 	constructor(public global: typeof globalThis) {
 		this.serviceWorker = this.global.navigator.serviceWorker;
 
-		if ("document" in self) {
+		if ("document" in global) {
 			this.documentProxy = createDocumentProxy(this, global);
+
+			global.document[SCRAMJETCLIENT] = this;
 		}
 
 		this.locationProxy = createLocationProxy(this, global);
diff --git a/src/client/natives.ts b/src/client/natives.ts
index 39e75d5..6f5eda6 100644
--- a/src/client/natives.ts
+++ b/src/client/natives.ts
@@ -1,3 +1,17 @@
 export const nativeFunction = self.Function;
 export const nativeGetOwnPropertyDescriptor =
 	self.Object.getOwnPropertyDescriptor;
+
+// descriptors
+export const nativeDefaultViewGetter = nativeGetOwnPropertyDescriptor(
+	Document.prototype,
+	"defaultView"
+)!.get!;
+export const nativeContentDocumentGetter = nativeGetOwnPropertyDescriptor(
+	HTMLIFrameElement.prototype,
+	"contentDocument"
+)!.get!;
+export const nativeContentWindowGetter = nativeGetOwnPropertyDescriptor(
+	HTMLIFrameElement.prototype,
+	"contentWindow"
+)!.get!;
diff --git a/src/types.d.ts b/src/types.d.ts
index 9301af7..1f3fac4 100644
--- a/src/types.d.ts
+++ b/src/types.d.ts
@@ -83,6 +83,11 @@ declare global {
 		[SCRAMJETCLIENT]: ScramjetClient;
 	}
 
+	interface HTMLDocument {
+		// should be the same as window
+		[SCRAMJETCLIENT]: ScramjetClient;
+	}
+
 	interface HTMLIFrameElement {
 		// the event target belonging to an <iframe> holding a /prefix/blah url
 		[SCRAMJETFRAME]: ScramjetFrame;