alcaeus/ResourceCacheStrategy.js

Hydra Core hypermedia-aware client library

export const shouldLoad = () => true;
export function requestCacheHeaders({ response }) {
    const etag = response.xhr.headers.get('ETag');
    if (etag) {
        return {
            'if-none-match': etag,
        };
    }
    const lastModified = response.xhr.headers.get('Last-Modified');
    if (lastModified) {
        return {
            'if-modified-since': lastModified,
        };
    }
    return {};
}