make Github Pages the normal case and deployment to Cascade the excep…

…tion

src/utils/url.js

@@ -7,12 +7,12 @@ export function isValidUrl(string) {
   }
 }
 
-// Allow base_url to be different on Github Pages than when deployed elsewhere, for example to Cascade.
-// GithubPages requires the base_url to be the repository name, while Cascade needs the page to
+// Allow base_url to be different when deployed elsewhere than Github Pages — for example to a CMS.
+// GithubPages requires the base_url to be the repository name, while a CMS may need the page to
 // fit into its own directory structure.
 export const getBaseUrl = (configuration = __APP_ENV__) => {
   const baseUrl = configuration?.base_url || ''
-  const githubPagesBaseUrl = configuration?.github_pages_base_url || ''
+  const deployedBaseUrl = configuration?.deployed_base_url || ''
   const isGithubPages = window.location.origin.indexOf('.github.io/') > 0
-  return isGithubPages ? githubPagesBaseUrl : baseUrl
+  return isGithubPages ? baseUrl : deployedBaseUrl
 }