New version 0.4.0 causes problem with lightbox

[Laserlicht]

Has to revert to older version (0.3.7): vcmi/VCMI.eu#34

Because the lightbox only works for cached images. If you open a uncached page: When you click on image you will see the spinner forever an the image isn't loading.

Now, after revert it's working just fine again.

Web console also generates an error:

Uncaught TypeError: URL constructor:  is not a valid URL.
    Xa index.ts:110
    i index.ts:301
    RxJS 7
12 [index.ts:110:6](https://vcmi.eu/assets/javascripts/src/templates/assets/javascripts/integrations/instant/index.ts)

It seems a href url is unset.

I'm not sure if this bug is coming from this library. Or from https://github.com/squidfunk/mkdocs-material by @squidfunk

[odin568]

Having same issue. Downgrade to 0.3.7 helps, but not a solution of course