Merge pull request #11204 from rstudio/bugfix/unknown_file_types_open…

…_file

Allow fallback unknown text file types to open in Desktop

src/gwt/src/org/rstudio/studio/client/common/filetypes/FileTypeRegistry.java

@@ -607,12 +607,9 @@ public FileType getTypeByTypeName(String name)
    public FileType getTypeForFile(FileSystemItem file)
    {
       // last ditch default type -- see if this either a known text file type
-      // or (for server mode) NOT a known binary type. the result of this is
+      // or NOT a known binary type. the result of this is
       // that unknown files types are treated as text and opened in the editor
-      // (we don't do this on desktop because  in that case users have the
-      // recourse of using a local editor)
-      String defaultType = Desktop.isDesktop() ? "application/octet-stream" :
-                                                 "text/plain";
+      String defaultType = "text/plain";
       return getTypeForFile(file, defaultType);
    }