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2 changes: 1 addition & 1 deletion src/internal.ts
Original file line number Diff line number Diff line change
Expand Up @@ -109,7 +109,7 @@ function initIntercoms() {

const portFrame = incomingPort.sender.frameId

if (portFrame)
if (portFrame !== undefined)
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This would allow nulls to pass this check. Should this be portFrame || portFrame === 0 instead?

portId = `${portId}.${portFrame}`

// literal tab id in case of content script, however tab id of inspected page in case of devtools context
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