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-rw-r--r--ext/mixed/js/comm.js1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/mixed/js/comm.js b/ext/mixed/js/comm.js
index 1264a33e..27cb0c34 100644
--- a/ext/mixed/js/comm.js
+++ b/ext/mixed/js/comm.js
@@ -221,6 +221,7 @@ class CrossFrameAPI {
}
async invokeTab(targetTabId, targetFrameId, action, params={}) {
+ if (typeof targetTabId !== 'number') { targetTabId = null; }
const commPort = this._getOrCreateCommPort(targetTabId, targetFrameId);
return await commPort.invoke(action, params, this._ackTimeout, this._responseTimeout);
}