diff --git a/src/content/controller_content.ts b/src/content/controller_content.ts
index 10159146..dbbbdcd1 100644
--- a/src/content/controller_content.ts
+++ b/src/content/controller_content.ts
@@ -3,6 +3,7 @@ import { contentState, ModeName } from "@src/content/state_content"
 import Logger from "@src/lib/logging"
 import * as controller from "@src/lib/controller"
 import { KeyEventLike, ParserResponse } from "@src/lib/keyseq"
+import { deepestShadowRoot } from "@src/lib/dom"
 
 import * as hinting from "@src/content/hinting"
 import * as gobblemode from "@src/parsers/gobblemode"
@@ -93,16 +94,6 @@ class KeyCanceller {
 
 export const canceller = new KeyCanceller()
 
-/** Recursively resolves an active shadow DOM element. */
-function deepestShadowRoot(sr: ShadowRoot|null): ShadowRoot|null {
-	if (sr === null) return sr
-	let shadowRoot = sr
-	while (shadowRoot.activeElement.shadowRoot != null) {
-		shadowRoot = shadowRoot.activeElement.shadowRoot
-	}
-	return shadowRoot
-}
-
 /** Accepts keyevents, resolves them to maps, maps to exstrs, executes exstrs */
 function* ParserController() {
     const parsers: {
diff --git a/src/lib/dom.ts b/src/lib/dom.ts
index fcadb5e6..cfe47481 100644
--- a/src/lib/dom.ts
+++ b/src/lib/dom.ts
@@ -683,3 +683,14 @@ export function simulateClick(target: HTMLElement) {
         focus(target)
     }
 }
+
+/** Recursively resolves an active shadow DOM element. */
+export function deepestShadowRoot(sr: ShadowRoot|null): ShadowRoot|null {
+	if (sr === null) return sr
+	let shadowRoot = sr
+	while (shadowRoot.activeElement.shadowRoot != null) {
+		shadowRoot = shadowRoot.activeElement.shadowRoot
+	}
+	return shadowRoot
+}
+