1 files changed, 7 insertions, 0 deletions
diff --git a/tests/runner/browserstack/createAuthHeader.js b/tests/runner/browserstack/createAuthHeader.js
new file mode 100644
index 000000000..fe4831e9a
--- /dev/null
+++ b/tests/runner/browserstack/createAuthHeader.js
@@ -0,0 +1,7 @@
+const textEncoder = new TextEncoder();
+
+export function createAuthHeader( username, accessKey ) {
+	const encoded = textEncoder.encode( `${ username }:${ accessKey }` );
+	const base64 = btoa( String.fromCodePoint.apply( null, encoded ) );
+	return `Basic ${ base64 }`;
+}