can i remove 'use strict'? typeError: Attempted to assign to readonly property

[BillyQin]

angular: 4.2+
zone.js: 0.7.7 +

error:
function patchPrototype(prototype, fnNames) {
var source = prototype.constructor['name'];
var _loop_1 = function(i) {
var name_1 = fnNames[i];
var delegate = prototype[name_1];
if (delegate) {
prototype[name_1] = (function (delegate) {
return function () {
return delegate.apply(this, bindArguments(arguments, source + '.' + name_1));
};
})(delegate);
}
};
for (var i = 0; i < fnNames.length; i++) {
_loop_1(i);
}
}

TypeError: Attempted to assign to readonly property in prototype[name_1]

when i remove 'use strict',it will work.

can i help me ？ thanks

[JiaLiPassion]

Could you post a reproduce repo?

[BillyQin]

@JiaLiPassion I am sorry, I can't post a repo.

[JiaLiPassion]

You can try the latest version of zone.js
And if the issue still exists, you can try to debug which property is readonly.

[BillyQin]

@JiaLiPassion i have try the latest version of zone.js,and the issue still exists.

function patchPrototype(prototype, fnNames) {
var source = prototype.constructor['name'];
var _loop_1 = function(i) {
var name_1 = fnNames[i];
var delegate = prototype[name_1];
if (delegate) {
prototype[name_1] = (function (delegate) {
return function () {
return delegate.apply(this, bindArguments(arguments, source + '.' + name_1));
};
})(delegate);
}
};
for (var i = 0; i < fnNames.length; i++) {
_loop_1(i);
}
}

prototype[getCurrentPosition] is readonly,thanks

[JiaLiPassion]

Then what is the prototype is?

[BillyQin]

@JiaLiPassion
prototype = Geolocation {getCurrentPosition: function}, fnNames = (2)

["getCurrentPosition", "watchPosition"]
source = "Geolocation"
_loop_1 = function (i), i = 1
fnNames = (2) ["getCurrentPosition", "watchPosition"]
prototype = Geolocation {getCurrentPosition: function}
prototype = Geolocation {getCurrentPosition: function}
source = "Geolocation"

this is chrome debug , is right?

[JiaLiPassion]

I will check it, thanks.

[BillyQin]

@JiaLiPassion my project NOT work in ios10.3.2 and 'use strict', and it can work in chrome、android.
finally, thank you

[JiaLiPassion]

@BillyQin , please try the attached zone.js.zip (unzip and copy to node_modules/zone.js/dist) and check whether the issue resolved or not.

zone.js.zip

[BillyQin]

@JiaLiPassion yes,it can work. oh, i am very excited !! thank you!!! I hope deliver something as soon as possible,thank you