Improve caching of shabbat JSON with date-override

package.json

@@ -43,7 +43,7 @@
     "eslint": "^9.7.0",
     "eslint-plugin-n": "^17.9.0",
     "globals": "^15.8.0",
-    "rollup": "^4.18.1"
+    "rollup": "^4.19.0"
   },
   "dependencies": {
     "@hebcal/core": "^5.4.11",

src/shabbat.js

@@ -8,6 +8,7 @@ import {makeHebcalOptions, processCookieAndQuery, possiblySetCookie,
   makeGeoUrlArgs,
   shortenUrl,
   queryDefaultCandleMins,
+  CACHE_CONTROL_7DAYS,
   localeMap, makeHebrewCalendar} from './common.js';
 import {getTodayDate, getDefaultYear, getDefaultHebrewYear,
   expiresSaturdayNight} from './dateUtil.js';
@@ -46,6 +47,7 @@ export async function shabbatApp(ctx) {
     }
     if (dateOverride) {
       ctx.lastModified = new Date();
+      ctx.set('Cache-Control', CACHE_CONTROL_7DAYS);
     } else {
       expiresSaturdayNight(ctx, new Date(), options.location.getTzid());
     }

views/holiday-main-index.ejs

@@ -12,7 +12,8 @@
 <div class="col-sm-8">
 <h2>Jewish Holidays <%= yearOverride ? `${hyear - 1}-${hyear + 4}` : '' %></h2>
 <% if (hyear <= 5513) { %><%- await include('partials/warning-1752.ejs') %><% } -%>
-<p>Dates of major and minor Jewish holidays as observed in <%= il ? 'Israel' : 'the Diaspora' %>.
+<p>Dates of major and minor Jewish holidays for years <%=hyear-3762%>-<%=hyear-3756%>,
+ as observed in <%= il ? 'Israel' : 'the Diaspora' %>.
 <span class="d-print-none">
 Each holiday page includes a brief overview of special observances and
 customs, and any special Torah readings.</span></p>