Context filters don't do anything in NodeJS

[Aci-yt]

When using ctx.filter, none of the filters actually change the final image.
Trying a simple thing such as blurring text or turning an image grayscale is complicated enough, but the filters that are supposed to do it, simply don't.
In my case, using canvas to let a Discord bot return a blurred image of "Hello World" in SansSerif only returns a clear image of the text.

    let cnvs = canvas.createCanvas(740, 260)
    let ctx = cnvs.getContext('2d')

    ctx.filter = 'blur(10px)';
    ctx.font = '48px serif';
    ctx.fillText('Hello world', 50, 100);

    message.channel.send({files: [{ attachment: cnvs.toBuffer() }]}).catch(allerrors)

Returns this image.

Replacing ctx.filter = 'blur(10px)'; with any other filter has the same effect: none

Your Environment

• Version of node-canvas: 2.9.0
• Environment: Node.js v16.6.2

[zbjornson]

Node-canvas doesn't support the filter API yet, dupe of #1063.