3.4.2 - No encoder found for media type (application/octet-stream).

[chudaozhe]

Version: "mews/captcha": "3.4.2"

Usage

captcha_img('flat')

Return a link

http://blog.cw.net/captcha/flat?0asroCqw

But when I access this url, I get an error

No encoder found for media type (application/octet-stream).

Am I using it the wrong way?

[thelfensdrfer]

I think the error comes from this line:

captcha/src/Captcha.php

Line 275 in e009e1e

$this->canvas = $this->imageManager->create($this->width , $this->height)->fill($this->fill);

$this->imageManager->create, returns a octet-stream instead of an image. I just don't know if this was always the case it if it is normal to do so. I guess not.

[thelfensdrfer]

Version 3.3 works, > 3.4.0 does not.

[HuyPham55]

Quick fix
In config/captcha, for flat configuration (or any custom configuration that you are having the exception with), turn the background ON by changing:

bgImage => true //initial value: false

Worked for me

[Shadecute]

I'm also having this issue on the latest version with flat. Changing 'bgImage' to 'true' fixes it.

[Battery9]

But i want no bg image. Instead a solid color bg.
Apparently that's not possible for now?

[bishutalai07]

But i want no bg image. Instead a solid color bg.
Apparently that's not possible for now?

Same problem. I don't want bgImage

[TxX8N8LN]

Thx @HuyPham55 , same bug here, and it's work with your quick fix