Serious problem of the Dropbox Chooser javascript

Hello!

I have a problem with the dropbox Chooser API.

https://www.dropbox.com/developers/chooser
https://www.dropbox.com/static/api/2/dropins.js <-- problem javascript

<script type="text/javascript" src="https://www.dropbox.com/static/api/2/dropins.js" id="dropboxjs" data-app-key="xxxxx"></script> <-- embed code

I have added "Chooser" javaScript to my dozens of web sites/pages. but recently errors started appearing.
All Window object functions before running "dropins.js" are overwritten.
So web page functions are broken.

When I looked at the "dropins.js" file... there was code that overwrites everything on the Window object. Isn’t this problematic code? Please make a fix.
========================
var W = window.Dropbox,
K = window,
F = o.Dropbox;
for (var q in F) K[q] = F[q]; <-- here
F.__esModule && Object.defineProperty(K, "__esModule", {
========================

Please do not overwrite existing web page functions.
There is no problem with Google Drive, One Drive, or Box javascript.
Only Dropbox overwrites existing functions.

For example, functions like "init()".

Dropbox.init ==> Window.init (Disables the existing “init” function on the webpage)