Print tool does not print WMS layers that requires credentials

[maan002]

Describe the bug
If you have a WMS layer that require credentials it will display correctly in the map. If you later want to print that map you will get a 401 error and the WMS layer is not included in the print.

Solution
In my investigation of the error I found that the problem seems to lie in the function exchangeLayer in the PrintModel.js file.

The code looks like this:

const imageSource = new ImageWMS({
        ...source.getProperties(),
        projection: source.getProjection(),
        crossOrigin: source.crossOrigin ?? "anonymous",
        params: { ...source.getParams() },
        ratio: 1,
        hidpi: false,
      });

However, if you check the values of the source object you will find that source.crossOrigin is undefined.

[maan002]

The following code works:

      const imageSource = new ImageWMS({
        ...source.getProperties(),
        projection: source.getProjection(),
        crossOrigin: source.crossOrigin ?? source.crossOrigin_ ?? "anonymous",
        params: { ...source.getParams() },
        ratio: 1,
        hidpi: false,
      });

[Hallbergs]

Please test it out now. For some reason the crossOrigin property is not publicly available... Using the private property feels bad but it should do the trick.

[jesade-vbg]

Yes, it feels like a bug in OL. It seems to be working with TileWMS source but not with ImageWMS.
I vote for the sollution @maan002 presents, just add a nice comment :)

[maan002]

Yes, in my testing I got a layer that had a value in the source.crossOrigin property.
So both should be used (as in my example).

[Hallbergs]

Fixed