r - Using R, Unable to Read Image files on Azure DataLakeStore

Question

Using R, I am trying to read image files using WebHDFS API on Azure DataLakeStore. It is not working.

However, I can read the text files using WebHDFS API sitting next to image file, using same code, with no issues. Also, I can read image files which is openly available on internet.

1. Code to read JPG on DataLakeStore (doesn't work) using WebHDFS API

a <- GET("https://<mydatalakestore>.azuredatalakestore.net/webhdfs/v1/<folder>/pic.jpg?op=OPEN&read=true",
           add_headers(Authorization = "Bearer <Auth Token>"))

a$status_code == 403

OR

a <- GET("https://<mydatalakestore>.azuredatalakestore.net/webhdfs/v1/<folder>/pic.jpg",
           add_headers(Authorization = "Bearer <Auth token>"))

a$status_code == 400

2. Code to read JPG on Open Web (Works fine)

a <- GET("http://cran.r-project.org/Rlogo.jpg")

a$status_code == 200

x <- content(a)
plot(0:1, 0:1, type = "n")
rasterImage(x, 0, 0, 1, 1)

3. Code to read Text (sitting next to image file on DataLakeStore; works fine) using WebHDFS API

a <- GET("https://<mydatalakestore>.azuredatalakestore.net/webhdfs/v1/<myfolder>/testfile3.txt?op=OPEN&read=true",
                   add_headers(Authorization = "Bearer <Auth Token>"))

a$status_code == 200