images as fits.gz from ALMA Science Archive not recognized by CARTA

[kswang1029]

Describe the bug
Reported by a v3 beta tester. Images as fits.gz downloaded from the ALMA Science Archive are not recognized by CARTA. If we unzip it and re-zip it (in my case with the gzip in macOS "Apple gzip 353.100.22"), the new fits.gz file can be recognized.

test images are attached
test_by_mac_gzip.fits.gz
test_from_alma_archive.fits.gz

To Reproduce
Steps to reproduce the behavior:

1. download the example images above (or download such from the ALMA Science Archive directly)
2. check the file list and we will only see one image showing up

Expected behavior
The fits.gz images from the ALMA science archive should be recognized by CARTA.

Platform info (please complete the following information):

• OS [e.g. macOS Monterey]: macOS Monterey
• Browser [e.g. chrome, safari, electron app]: v3b3 electron app
• Browser version [e.g. 22]:
• Backend branch [e.g. dev, v3b2 release]: v3b3 electron app
• Frontend branch [e.g. dev, v3b2 release]: v3b3 electron app

[kswang1029]

@markccchiang could you help on this one?

[markccchiang]

@markccchiang could you help on this one?

Ok.