blend4web WEBGL INVALID_OPERATION: bindTexture

[SylenRequests]

Hello there,

when i disable the texture cache in blend4web (on init enable_texture_cache: false), I get a lot of errors in the console when I use replace_image on a texture:

WebGL: INVALID_OPERATION: bindTexture: attempt to use a deleted object.
WebGL: INVALID_OPERATION: getTexParameter: no texture bound to target.
WebGL: INVALID_ENUM: texParameter: invalid parameter.
WebGL: GL_INVALID_ENUM: Texture filter not recognized.

I can't use the texture cache because I generate and load a bunch of images from the web, so it would fill up until it's out of memory. Does anyone have an ideas? Is this a known bug? Many thanks in advance!