1 files changed, 19 insertions, 3 deletions
diff --git a/deps/npm/node_modules/npm-profile/node_modules/make-fetch-happen/node_modules/http-cache-semantics/node4/index.js b/deps/npm/node_modules/npm-profile/node_modules/make-fetch-happen/node_modules/http-cache-semantics/node4/index.js
index 7011106818..bcdaebe80f 100644
--- a/deps/npm/node_modules/npm-profile/node_modules/make-fetch-happen/node_modules/http-cache-semantics/node4/index.js
+++ b/deps/npm/node_modules/npm-profile/node_modules/make-fetch-happen/node_modules/http-cache-semantics/node4/index.js
@@ -271,7 +271,14 @@ module.exports = function () {
 
     CachePolicy.prototype.responseHeaders = function responseHeaders() {
         var headers = this._copyWithoutHopByHopHeaders(this._resHeaders);
-        headers.age = '' + Math.round(this.age());
+        var age = this.age();
+
+        // A cache SHOULD generate 113 warning if it heuristically chose a freshness
+        // lifetime greater than 24 hours and the response's age is greater than 24 hours.
+        if (age > 3600 * 24 && !this._hasExplicitExpiration() && this.maxAge() > 3600 * 24) {
+            headers.warning = (headers.warning ? `${headers.warning}, ` : '') + '113 - "rfc7234 5.5.4"';
+        }
+        headers.age = `${Math.round(age)}`;
         return headers;
     };
 
@@ -314,6 +321,15 @@ module.exports = function () {
         return isFinite(ageValue) ? ageValue : 0;
     };
 
+    /**
+     * Value of applicable max-age (or heuristic equivalent) in seconds. This counts since response's `Date`.
+     *
+     * For an up-to-date value, see `timeToLive()`.
+     *
+     * @return Number
+     */
+
+
     CachePolicy.prototype.maxAge = function maxAge() {
         if (!this.storable() || this._rescc['no-cache']) {
             return 0;
@@ -442,7 +458,7 @@ module.exports = function () {
 
         /* MUST send that entity-tag in any cache validation request (using If-Match or If-None-Match) if an entity-tag has been provided by the origin server. */
         if (this._resHeaders.etag) {
-            headers['if-none-match'] = headers['if-none-match'] ? headers['if-none-match'] + ', ' + this._resHeaders.etag : this._resHeaders.etag;
+            headers['if-none-match'] = headers['if-none-match'] ? `${headers['if-none-match']}, ${this._resHeaders.etag}` : this._resHeaders.etag;
         }
 
         // Clients MAY issue simple (non-subrange) GET requests with either weak validators or strong validators. Clients MUST NOT use weak validators in other forms of request.
@@ -531,7 +547,7 @@ module.exports = function () {
         var newResponse = Object.assign({}, response, {
             status: this._status,
             method: this._method,
-            headers: headers
+            headers
         });
         return {
             policy: new this.constructor(request, newResponse),