perf(gatsby): don't create Head modules in develop if it's not used #37619
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Description
Right now, in develop we create
Head
modules for every page template even if that template doesn't actually implementHead
. Theorhetically this would be fine, but on larger projects this result in quite an increase of needed memory by webpack compilation, so this PR is crude way to limit impact of it by allowing memory usage be more in line with what it used to be beforeHead
API was introduced.As we do want people to use that API over alternatives we will have to figure out how memory usage can be optimized when
Head
is actually implemented by templatesDocumentation
Related Issues
#36899