In the example program at the bottom of the page the author wrote:
glGetProgramResourceiv(prog, GL_UNIFORM, unifIx, 3, unifProperties, 4, NULL, values);
But I think correct is
glGetProgramResourceiv(prog, GL_UNIFORM,blockUnifs[unifIx], 3, unifProperties, 4, NULL, values);
PS:
I was banned from the discussion page because of a german DTAG IP !?
IP-Range 93.232.228.0 - 93.232.228.255