uniform1fv failed

[vvshuai]

gl.shaderSource(
    xxxShader,
    `
    ....
    uniform float h[6];
    ....
    `
);
....
gl.uniform1fv(
        gl.getUniformLocation(xxxProgram, 'h'),
        new Float32Array([
            1.0,2.0,3.0,4.0,5.0,6.0
        ])
    );

When I am using headless-gl,
I'm trying to pass an array with variable 'h' into the fragment shader, but the rendering result is not working.
But if I write the variable 'h' in the fragment shader, there is no problem.
The code is effective in the browser.