Available in all subroutines.
Generation of the service VCL currently loaded.
Try it out
req.vcl.generation is used in the following code examples. Examples apply VCL to real-world use cases and can be deployed as they are, or adapted for your own service. See the full list of code examples for more inspiration.
Click RUN on a sample below to provision a Fastly service, execute the code on Fastly, and see how the function behaves.
Support caching of OPTIONS requests
Normally OPTIONS requests aren't cacheable. Allow caching of OPTIONS by converting the request to a GET and back to OPTIONS if it's a cache miss.