> if (crul::ok('http://opencitations.net/sparql')) {
+ oc_doi2ids("10.1097/igc.0000000000000609")
... removed
Error: No description found for code: 520
and
> if (crul::ok("http://opencitations.net/index/coci/api/v1")) {
+ # references
+ oc_coci_refs(doi1)
... removed
Error in fauxpas::find_error_class(x$status_code) :
no method found for 520
Calls: oc_coci_refs -> oc_coci_stub -> oc_GET -> errs -> <Anonymous>
via cran checks
and