[MetaCRS] Proj4js dynamic CRS lookup

[Jon Britton]

Hi,

I'm trying to use proj4js in my project and will need to project to various
CRSs.  The projection codes are submitted by the user, so I have no way of
knowing what CRSs will be used.  I've looked at the user guide and it says
that proj4js can dynamically look up CRS info at run-time, but I can't
figure out how to set this up.  When I try and carry out a projection, I
just get the original values back...

Any help would be appreciated,

Jon
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