iOS Mobile Safari and WebViews Don't Play All Texts

[WesWedding]

It appears that the mobile Safari and WebViews on (some?) iOS devices do not provide a SpeechSynthesisEvent that is built in a way that is consistent with the way they are defined at MDN (https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisEvent)

Instead of a "utterance" property, iOS WebKit appears to put the utterance into CurrentTarget.
A minor adjustment to code as follows was enough to fix it for me

Original code

        me.currentContext.utterances.forEach(function (u, index) {
            if (index === 0) {
                u.onstart = function (e) {
                    me.currentContext.currentUtterance = e.utterance
                    p.done();
                    me.internalEvents.onPlay();
                };
            } else {
                u.onstart = function (e) {
                    me.currentContext.currentUtterance = e.utterance
                };
            }
...

Modified code

        me.currentContext.utterances.forEach(function (u, index) {
            if (index === 0) {
                // Note: iOS WebViews (in at least v11.2.6) put the event utterance into currentTarget for some reason.
                u.onstart = function (e) {
                    me.currentContext.currentUtterance = e.utterance || e.currentTarget;
                    p.done();
                    me.internalEvents.onPlay();
                };
            } else {
                u.onstart = function (e) {
                    me.currentContext.currentUtterance = e.utterance || e.currentTarget;
                };
            }

I'll try to remember to submit a pull request sometime tonight. As far as I can tell, this is the only spot where this matters.