add no-cache option to #49

Author: jeremydaly

lib/response.js

@@ -373,7 +373,9 @@ class RESPONSE {
     // if custom string value
     if (maxAge !== true && maxAge !== undefined && typeof maxAge === 'string') {
       this.header('Cache-Control', maxAge)
-    } else if (maxAge !== false) {
+    } else if (maxAge === false) {
+      this.header('Cache-Control', 'no-cache, no-store, must-revalidate')
+    } else {
       maxAge = maxAge && !isNaN(maxAge) ? (maxAge/1000|0) : 0
       this.header('Cache-Control', (isPrivate === true ? 'private, ' : '') + 'max-age=' + maxAge)
       this.header('Expires',new Date(Date.now() + maxAge).toUTCString())

test/cacheControl.js

@@ -106,7 +106,8 @@ describe('cacheControl Tests:', function() {
     let result = await new Promise(r => api.run(_event,{},(e,res) => { r(res) }))
     expect(result).to.deep.equal({
       headers: {
-        'content-type': 'application/json'
+        'content-type': 'application/json',
+        'cache-control': 'no-cache, no-store, must-revalidate'
       },
       statusCode: 200,
       body: 'cache',