Problem accessing the file in JiraCloud manual

I am learning JiraCloud. Now I’m going through the manual
Everything worked until

Step 3: Install and test your app

When I trying to upload atlassian-connect.json I catch exception

Like that: “Problem accessing the file https:/”
But in step 2.4 I confirmed that the descriptor is available by going to the ngrok HTTPS URL in my browser.

How can this issue be resolved?

PS. I using Windows 7 and DrWeb.

Hi Oleksii,

Looks like there is a typo in your url, one slash after https, url should be

Thank you.

Thank you
You are absolutely right, the only matter is my carelessness.
Now its work )