error message tweaks for clarity

Author: sarahs

lib/get-applicable-versions.js

@@ -73,7 +73,7 @@ function getApplicableVersions(frontmatterVersions, filepath) {
     !foundFeatureVersions.isNextVersionOnly
   ) {
     throw new Error(
-      `No applicable versions found for ${filepath}. Please double-check the page's \`versions\` frontmatter.`
+      `${filepath} is not available in any currently supported version. Make sure the \`versions\` property includes at least one supported version.`
     )
   }
 

middleware/contextualizers/features.js

@@ -6,7 +6,7 @@ export default function features(req, res, next) {
   // Determine whether the currentVersion belongs to the list of versions the feature is available in.
   Object.keys(req.context.site.data.features).forEach((featureName) => {
     const { versions } = req.context.site.data.features[featureName]
-    const applicableVersions = getApplicableVersions(versions, req.path)
+    const applicableVersions = getApplicableVersions(versions, `data/features/${featureName}.yml`)
 
     // Adding the resulting boolean to the context object gives us the ability to use
     // `{% if featureName ... %}` conditionals in content files.