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Cache not consistently updated for PCS JS endpoint
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Description

This is about the PCS JS endpoint: https://meta.wikimedia.org/api/rest_v1/data/javascript/mobile/pcs. (Others could be affected as well.)

I deployed PCS today (4/2/2020) and purged the PCS JS endpoint (plus a few others) using mwmaint1002:

echo 'https://meta.wikimedia.org/api/rest_v1/data/javascript/mobile/pcs' | mwscript purgeList.php

While I personally can see the update in my location, one of my colleagues on the east coast doesn't.

Here are the cache related headers for this:

Central US (response is up-to-date):

cache-control: public, max-age=86400, s-maxage=86400
date: Thu, 02 Apr 2020 22:07:29 GMT
content-location: https://meta.wikimedia.org/api/rest_v1/data/javascript/mobile/pcs
x-request-id: d91de138-dc64-4d34-adb8-cd89084990ea
server: restbase2011
etag: W/"-220997356691/57fdfcf0-752e-11ea-9b92-ae2ab0d75385"
age: 1694
x-cache: cp2035 hit, cp2027 hit/7
x-cache-status: hit-front
server-timing: cache;desc="hit-front"
strict-transport-security: max-age=106384710; includeSubDomains; preload
set-cookie: WMF-Last-Access=02-Apr-2020;Path=/;HttpOnly;secure;Expires=Mon, 04 May 2020 12:00:00 GMT

East coast US (response is old):

Age: 79169
X-Cache: cp1075 hit, cp1083 hit/415
Content-Type: text/javascript; charset=utf-8; profile="https://www.mediawiki.org/wiki/Specs/JavaScript/1.0.0"
Etag: W/"-524204942720/cad13560-7477-11ea-8ee4-c76a18c093f5"
x-webkit-csp: default-src 'none'; frame-ancestors 'none'
x-content-type-options: nosniff
X-Cache-Status: hit-front

Note the age is much higher in the second response. Is there anything we should do differently to purge this from Varnish?

Event Timeline

Pchelolo added a subscriber: Pchelolo.

I'm gonna retag this with Traffic and remove CPT for now, since CDN purges are not within our are of expertise. Please retag us back if you find out the issue is in MW