Validating v1.0 feed gives "unimplemented version" error

[testower]

It seems like this is a bug that is caused by v1.0 feed not having a version field, since this field was introduced in v1.1. Even specifying v1.0 in the options gives the same error.

To reproduce

Try to validate the following feed: https://eu-feeds.joyridecity.bike/api/v1/zvipp/trondheim-2021/gbfs/gbfs.json

Update: I patched the validator locally so that feeds without a version would be validated as v1.0, and this seems to work:

@@ -144,7 +145,7 @@ class GBFS {
         this.autoDiscovery = body

         const errors = this.validateFile(
-          this.options.version || body.version,
+          this.options.version || body.version || '1.0',
           'gbfs',
           this.autoDiscovery
         )
@@ -152,7 +153,7 @@ class GBFS {
         return {
           errors,
           url: this.url,
-          version: body.version,
+          version: body.version || '1.0',
           recommanded: true,
           required: this.isGBFSFileRequire(
             this.options.version || body.version || '1.0'

This may or may not be the correct or optimal solution though.

On top of this, it seems like the schema for 1.0 incorrectly requires the "version" field, despite it not existing in 1.0:

https://github.com/MobilityData/gbfs-validator/blob/master/gbfs-validator/schema/v1.0/gbfs.json#L16 https://github.com/MobilityData/gbfs-validator/blob/master/gbfs-validator/schema/v1.0/gbfs.json#L49