Manual:$wgResourceLoaderValidateStaticJS

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<translate> This feature was removed completely in version <tvar name=ver>1.32.0</tvar>.</translate>

<translate> ResourceLoader</translate>: $wgResourceLoaderValidateStaticJS
Whether to parse statically-sourced (file-backed) JavaScript resources prior to minification to validate them.
<translate> Introduced in version:</translate>	1.18.0 (r91914)
<translate> Removed in version:</translate>	1.32.0 (Gerrit change 454081; git #3bd1910f)
<translate> Allowed values:</translate>	(boolean)
<translate> Default value:</translate>	`false`
<translate> Other settings:</translate> <translate> Alphabetical</translate> \| <translate> By function</translate>

Details

If set to true, statically-sourced (file-backed) JavaScript resources will be parsed for validity before being bundled up into ResourceLoader modules.

This can be helpful for development by providing better error messages in default (non-debug) mode, but JavaScript parsing is slow and memory hungry and may fail on large pre-bundled frameworks.