$( document ).ready( function () { console.log( mw.config.get( 'wgBackendResponseTime' ), mw.config.get( 'wgHostname' ) ); } );
works only in debug=true, otherwise you just get nulls.
The source had <script>(window.RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgBackendResponseTime":203,"wgHostname":"mw1321"});});</script> but it doesn't appear to actually get executed? Or does but RLQ doesn't get run? Or something breaks somewhere along the way.
On most pages, I find that logging those values from the browser console works both in debug mode and non-debug mode.
However, there is definitely an issue here, maybe two.
The former I have confirmed and is due to RLQ.push() being re-defined in an incorrect way half-way through the loading of the page. In those cases, the following is observed.
mw.config.get( 'wgBackendResponseTime' ) //> null RLQ.push(function () { console.log('hello'); }) //> undefined RLQ.push //> ƒ (entry){mw.loader.using(entry[0],entry[1]);}
On most cases, the above is not true, but in some cases it is. It looks like my recent refactor around adding lazy-loading module support to RLQ-push didn't account for a certain race condition we are observing here.
For the record I was experiencing this issue while viewing https://meta.wikimedia.org/wiki/User:Krenair/global.js
Change 470086 had a related patch set uploaded (by Krinkle; owner: Krinkle):
[mediawiki/core@master] resoureloader: Restore support for plain callbacks in mediawiki.base's RLQ
Change 470086 merged by jenkins-bot:
[mediawiki/core@master] resoureloader: Restore support for plain callbacks in mediawiki.base's RLQ
Change 470177 had a related patch set uploaded (by Krinkle; owner: Krinkle):
[mediawiki/core@wmf/1.33.0-wmf.1] resoureloader: Restore support for plain callbacks in mediawiki.base's RLQ
Change 470178 had a related patch set uploaded (by Krinkle; owner: Krinkle):
[mediawiki/core@REL1_32] resoureloader: Restore support for plain callbacks in mediawiki.base's RLQ
Change 470178 merged by jenkins-bot:
[mediawiki/core@REL1_32] resoureloader: Restore support for plain callbacks in mediawiki.base's RLQ
Change 470177 merged by jenkins-bot:
[mediawiki/core@wmf/1.33.0-wmf.1] resoureloader: Restore support for plain callbacks in mediawiki.base's RLQ
Mentioned in SAL (#wikimedia-operations) [2018-10-27T22:22:20Z] <krinkle@deploy1001> Synchronized php-1.33.0-wmf.1/resources/src: T208093- I25012a2c6f (duration: 00m 58s)