MapServer won't open multiple layer with STATUS on

Question

So I made this mapfile and I tried to load multiple layers with status set to on but that doesn't work. The layers with "STATUS DEFAULT" load but the other two won't when I change the URL.

#### places LAYER
 LAYER NAME "places"
 TYPE polygon
 DATA "places"
 STATUS DEFAULT
 CLASS
 STYLE
 COLOR "#b2b266"
 OUTLINECOLOR "#331a00"
 END
 END
 END
 #### water LAYER
 LAYER NAME "water"
 TYPE polygon
 DATA "water"
 STATUS ON
 CLASS
 STYLE
 COLOR "#1a8cff"
 OUTLINECOLOR "#00264d"
 END
 END
 END
 #### railroads LAYER
 LAYER NAME "railways"
 TYPE LINE
 DATA "railways"
 STATUS ON
 CLASS
 STYLE
 COLOR "#ff6600"
 SIZE 3
 SYMBOL "line7"
 END
 END
 END

If I set "LAYERS=water" or "LAYERS=railways" the layers will load but "LAYERS=water,railways" won't with the URL:

http://localhost/cgi-bin/mapserv.exe?map=/ms4w/apps/MyProject/project.map&layers=water,railways&mode=map

Answer 1

When you use mode=map you have to separate layer names by space not comma. In your case:

http://localhost/cgi-bin/mapserv.exe?map=/ms4w/apps/MyProject/project.map&layers=water railways&mode=map

Or you can use more layer=name parameters in the query string:

http://localhost/cgi-bin/mapserv.exe?map=/ms4w/apps/MyProject/project.map&layer=water&layer=railways&mode=map

• Zoltan: The question is about CGI MapServer not WMS and it works for me (Ubuntu 16.04 and MapServer 7.0.7). Quote from MapServer docs: LAYERS [name name ...] The names of the layers to be turned on. Layer names must be separated by spaces.
• user30184: The answer is correct, I hope that the one who downvoted will take it back.