issue when expose arrive API to window

[John Giannoudakis]

hi, and thanks for your wrapper library over Mutation Observers
we use arrive.js in one site, and when trying to expose the arrive API in window, we get the error bellow:

// the call in arrive.js line 441:
exposeApi(window.prototype);

// the error:
Uncaught TypeError: Cannot set property 'arrive' of undefined
    at Object.exposeApi (arrive.js:427)
    at eval (eval at <anonymous> (arrive.js:440), <anonymous>:1:1)
    at arrive.js:440
    at Object.r.1 (arrive.js:449)

it seems that the window.prototype is undefined. why this may happen? Is there any way to override this property of window object?

is there any workaround on this? maybe using Window.proto instead will fix it?

[Uzair Farooq]

@giannoudak is it specific to some browser. If so, let me know the browser name & version. Also, is your site live, can I check it?

[John Giannoudakis]

@uzairfarooq It isn't for a specific browser. I tried both in chrome and Firefox and the problem is same.
You could check this issue at the homepage of the site below.
http://www.happyparenting.gr/
Let me know your thoughts.

[John Giannoudakis]

hi @uzairfarooq did you manage to check fo this?
thanks in adavance

[Uzair Farooq]

Yeah, I had a look into it but not sure what's causing window.prototype to be null, could be some other library. As a workaround you can remove exposeApi(Window.prototype); from the lib.

Will try to have a detailed look when I have some time.

[cryptish]

Window is not defined in PhantomJS (prebuilt, 2.1.14) (running under Karma (0.13.22)).

[Uzair Farooq]

We should consider using globalThis (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/globalThis) in arrive with appropriate fallbacks.