JS API “code”: “woocommerce_rest_cannot_view”

Hello,

I have a problem with the API not wanting to respond to a specific request. I get this error message in response:

Object {
  "code": "woocommerce_rest_cannot_view",
  "data": Object {
    "status": 401,
  },
  "message": "Sorry, you cannot list resources.",
}

My request to retrieve all my products works but as soon as I want to make a request to return a product with a specific SKU, it displays me the error message…
What I don’t understand is that with the same parameters in Python, it works fine but on my application in Javascript it rejects me.

const WooCommerce = new WooCommerceAPI({
    url: 'https://myURL.com',
    consumerKey: 'xxxxxxxxxxxxxxxxxxxx',
    consumerSecret: 'xxxxxxxxxxxxxxxxxxxxxxxxxx',
    version: 'wc/v3',
    queryStringAuth: true
  });

Work (javascript):
WooCommerce.get('products')

Don’t Work (javascript):
WooCommerce.get('products?sku=MK_MB"')

Work (python):
wcapi.get("products?sku=MK_MB").json()

Do you know why I can’t make the request work in Javascript?

Thank you for your help !