Periodic errors on iOS

[dartess]

I get bug reports from time to time:

TypeError
undefined is not an object (evaluating 't.id')

{snip} e(o)}})).then(function(t){return t.map(function(t){return t.id>e.lastCursorId&&(e.lastCursorId=t.id),t}).filter(function(t){return function( {snip}

https://github.com/pubkey/broadcast-channel/blob/master/src/methods/indexed-db.js#L227

Devices: iPhone, iPad.
Browser: Safari.
iOS versions: 12.1.1, 12.1.2, 12.2, 12.3.1.

This error appears in the broadcast-channel package, so I opened the issue in their repository (I do not know which package is causing the error, so I notified both).

[dartess]

now fixed in patch broadcast-channel https://github.com/pubkey/broadcast-channel/issues/19