When sourcemaps change, their URLs will change. This causes the # sourceMappingURL= comment in the .js file to change. At the moment, this change in .js file content does not cause its digest to be updated.

This causes surprising caching issues, including major problems with SRI. CDN/browser caches are not be invalidated, even though the content of the file has changed. Therefore, the SRI integrity= attribute which Propshaft adds to the HTML may not match the cached version of the asset.