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Any idea what might be causing this?

aura_proddebug.js:50199 WARNING: [Performance degradation] markup://aura:if ["183:0"] in force:access ["156:0"] needed to clear unrendered body.
More info: https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/perf_warnings_if.htm
Component hierarchy: [one:one]>[force:access]

aura_proddebug.js:50199 WARNING: [Performance degradation] markup://aura:if ["263:0;p"] in one:header ["81:0;p"] needed to clear unrendered body.
More info: https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/perf_warnings_if.htm
Component hierarchy: [one:one]>[laf:appLayoutHost]>[laf:standardLayoutContainer]>[one:header]

1 Answer 1

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From this documentation:

This warning occurs when you change the isTrue attribute of an <aura:if> tag from true to false in the same rendering cycle. The unrendered body of the <aura:if> must be destroyed, which is avoidable work for the framework that slows down rendering time.

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  • Yes, I had seen that, but these are written by and provided by Salesforce!
    – kamezaburo
    Commented Feb 21, 2020 at 23:48
  • If you're sure about that, than I wouldn't worry about it. There's not much you can do about it (unless you work at Salesforce and that's your job). And if there's not a whole lot of them than I don't think your going to notice the performance difference anyway. I think Salesforce is in the process of moving their Aura components to Lightning Web Components so these messages should disappear at some point.
    – Kasper
    Commented Feb 21, 2020 at 23:55

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