Wrong downloaded image file extension

Reproduction Steps Taken from demo.py script:

    viz.images(
        np.random.randn(20, 3, 64, 64),
        opts=dict(title='Random images', caption='How random.')
    )

Navigate to locahost:8097 “main” env, download the image by clicking on the download button. The downloaded file has a “.jpg” extension and cannot be opened - it must have a “.png” extension.

Expected behavior “Random images.png” is downloaded.

Additional context I thought the issue is in https://github.com/facebookresearch/visdom/blob/master/js/ImagePane.js#L87; I changed it to have a png suffix but it does not resolve the issue.

[dizcza]

@rajdesai24 please read the issue description once again. Do I define a jpgquality in the test script? - No. —> “If not defined, the image will be saved as a PNG” - this is the expected behavior. But instead, I get an image with a JPG extension that cannot be opened by any JPG readers because it is NOT a JPG.

[kashyaprajharsh]

Sir, I want to work on this issue.