Why the red line in iOS camera is vertical？

[joblinan]

iOS 9.2, and the params I set is below:
var params = {
camera: "back", // defaults to "back"
flash: "off", // defaults to "auto". See Quirks
drawSight: true, //defaults to true, create a red sight/line in the center of the scanner view.
};
In Android, the red line displays well, and is horizontal, but in iOS, it is vertical.
How can I fix this bug?

[dcousens]

possibly related #29

[uniphonic]

I think this was fixed/changed in #36, so that it is now horizontal, same as android. The pull request #36 was also merged into my fork, so this fix exists in #65 as well.