Default base URL path to '/' (#2921)

1 files changed, 1 insertions, 1 deletions

diff --git a/js/url.ts b/js/url.ts
index a2562b9a3..f22198da4 100644
--- a/js/url.ts
+++ b/js/url.ts
@@ -333,7 +333,7 @@ export class URL {
         password: baseParts.password,
         hostname: baseParts.hostname,
         port: baseParts.port,
-        path: resolvePathFromBase(urlParts.path, baseParts.path),
+        path: resolvePathFromBase(urlParts.path, baseParts.path || "/"),
         query: urlParts.query,
         hash: urlParts.hash
       };