diff --git a/lib/vmfloaty/abs.rb b/lib/vmfloaty/abs.rb
index 6b5c0e1..2426c32 100644
--- a/lib/vmfloaty/abs.rb
+++ b/lib/vmfloaty/abs.rb
@@ -77,8 +77,10 @@ class ABS
     requests.each do |req|
       next if req == 'null'
 
-      if valid_json?(req)
+      if valid_json?(req) # legacy ABS had another JSON string always-be-scheduling/pull/306
         req_hash = JSON.parse(req)
+      elsif req.is_a?(Hash)
+        req_hash = req
       else
         FloatyLogger.warn "Warning: couldn't parse request returned from abs/status/queue"
         next
@@ -170,7 +172,11 @@ class ABS
       res_body = JSON.parse(res.body)
       if res_body.key?('vmpooler_platforms')
         os_list << '*** VMPOOLER Pools ***'
-        os_list += JSON.parse(res_body['vmpooler_platforms'])
+        if res_body['vmpooler_platforms'].is_a?(String)
+          os_list += JSON.parse(res_body['vmpooler_platforms']) # legacy ABS had another JSON string always-be-scheduling/pull/306
+        else
+          os_list += res_body['vmpooler_platforms']
+        end
       end
     end
 
@@ -180,7 +186,11 @@ class ABS
       if res_body.key?('ondemand_vmpooler_platforms') && res_body['ondemand_vmpooler_platforms'] != '[]'
         os_list << ''
         os_list << '*** VMPOOLER ONDEMAND Pools ***'
-        os_list += JSON.parse(res_body['ondemand_vmpooler_platforms'])
+        if res_body['ondemand_vmpooler_platforms'].is_a?(String)
+          os_list += JSON.parse(res_body['ondemand_vmpooler_platforms']) # legacy ABS had another JSON string always-be-scheduling/pull/306
+        else
+          os_list += res_body['ondemand_vmpooler_platforms']
+        end
       end
     end
 
@@ -190,7 +200,11 @@ class ABS
       if res_body.key?('nspooler_platforms')
         os_list << ''
         os_list << '*** NSPOOLER Pools ***'
-        os_list += JSON.parse(res_body['nspooler_platforms'])
+        if res_body['nspooler_platforms'].is_a?(String)
+          os_list += JSON.parse(res_body['nspooler_platforms']) # legacy ABS had another JSON string always-be-scheduling/pull/306
+        else
+          os_list += res_body['nspooler_platforms']
+        end
       end
     end
 
@@ -200,7 +214,11 @@ class ABS
       if res_body.key?('aws_platforms')
         os_list << ''
         os_list << '*** AWS Pools ***'
-        os_list += JSON.parse(res_body['aws_platforms'])
+        if res_body['aws_platforms'].is_a?(String)
+          os_list += JSON.parse(res_body['aws_platforms']) # legacy ABS had another JSON string always-be-scheduling/pull/306
+        else
+          os_list += res_body['aws_platforms']
+        end
       end
     end
 
diff --git a/spec/vmfloaty/abs_spec.rb b/spec/vmfloaty/abs_spec.rb
index c075c56..40804cf 100644
--- a/spec/vmfloaty/abs_spec.rb
+++ b/spec/vmfloaty/abs_spec.rb
@@ -9,6 +9,50 @@ describe ABS do
   before :each do
   end
 
+  describe '#list' do
+    it 'skips empty platforms and lists aws' do
+      stub_request(:get, "http://foo/status/platforms/vmpooler").
+          to_return(:status => 200, :body => "", :headers => {})
+      stub_request(:get, "http://foo/status/platforms/ondemand_vmpooler").
+          to_return(:status => 200, :body => "", :headers => {})
+      stub_request(:get, "http://foo/status/platforms/nspooler").
+          to_return(:status => 200, :body => "", :headers => {})
+      body = '{
+                "aws_platforms": [
+                  "amazon-6-x86_64",
+                  "amazon-7-x86_64",
+                  "amazon-7-arm64",
+                  "centos-7-x86-64-west",
+                  "redhat-8-arm64"
+                ]
+              }'
+      stub_request(:get, "http://foo/status/platforms/aws").
+          to_return(:status => 200, :body => body, :headers => {})
+
+
+      results = ABS.list(false, "http://foo")
+
+      expect(results).to include("amazon-6-x86_64", "amazon-7-x86_64", "amazon-7-arm64", "centos-7-x86-64-west", "redhat-8-arm64")
+    end
+    it 'legacy JSON string, prior to PR 306' do
+      stub_request(:get, "http://foo/status/platforms/vmpooler").
+          to_return(:status => 200, :body => "", :headers => {})
+      stub_request(:get, "http://foo/status/platforms/ondemand_vmpooler").
+          to_return(:status => 200, :body => "", :headers => {})
+      stub_request(:get, "http://foo/status/platforms/nspooler").
+          to_return(:status => 200, :body => "", :headers => {})
+      body = '{
+          "aws_platforms": "[\"amazon-6-x86_64\",\"amazon-7-x86_64\",\"amazon-7-arm64\",\"centos-7-x86-64-west\",\"redhat-8-arm64\"]"
+      }'
+      stub_request(:get, "http://foo/status/platforms/aws").
+          to_return(:status => 200, :body => body, :headers => {})
+
+      results = ABS.list(false, "http://foo")
+
+      expect(results).to include("amazon-6-x86_64", "amazon-7-x86_64", "amazon-7-arm64", "centos-7-x86-64-west", "redhat-8-arm64")
+    end
+  end
+
   describe '#format' do
     it 'returns an hash formatted like a vmpooler return, plus the job_id' do
       job_id = "generated_by_floaty_12345"
@@ -71,9 +115,9 @@ describe ABS do
         # rubocop:disable Layout/LineLength
         @active_requests_response = '
         [
-          "{ \"state\":\"allocated\",\"last_processed\":\"2019-12-16 23:00:34 +0000\",\"allocated_resources\":[{\"hostname\":\"take-this.delivery.puppetlabs.net\",\"type\":\"win-2012r2-x86_64\",\"engine\":\"vmpooler\"}],\"audit_log\":{\"2019-12-13 16:45:29 +0000\":\"Allocated take-this.delivery.puppetlabs.net for job 1576255517241\"},\"request\":{\"resources\":{\"win-2012r2-x86_64\":1},\"job\":{\"id\":\"1576255517241\",\"tags\":{\"user\":\"test-user\"},\"user\":\"test-user\",\"time-received\":1576255519},\"priority\":1}}",
+          { "state":"allocated","last_processed":"2019-12-16 23:00:34 +0000","allocated_resources":[{"hostname":"take-this.delivery.puppetlabs.net","type":"win-2012r2-x86_64","engine":"vmpooler"}],"audit_log":{"2019-12-13 16:45:29 +0000":"Allocated take-this.delivery.puppetlabs.net for job 1576255517241"},"request":{"resources":{"win-2012r2-x86_64":1},"job":{"id":"1576255517241","tags":{"user":"test-user"},"user":"test-user","time-received":1576255519},"priority":1}},
           "null",
-          "{\"state\":\"allocated\",\"last_processed\":\"2019-12-16 23:00:34 +0000\",\"allocated_resources\":[{\"hostname\":\"not-this.delivery.puppetlabs.net\",\"type\":\"win-2012r2-x86_64\",\"engine\":\"vmpooler\"}],\"audit_log\":{\"2019-12-13 16:46:14 +0000\":\"Allocated not-this.delivery.puppetlabs.net for job 1576255565159\"},\"request\":{\"resources\":{\"win-2012r2-x86_64\":1},\"job\":{\"id\":\"1576255565159\",\"tags\":{\"user\":\"not-test-user\"},\"user\":\"not-test-user\",\"time-received\":1576255566},\"priority\":1}}"
+          {"state":"allocated","last_processed":"2019-12-16 23:00:34 +0000","allocated_resources":[{"hostname":"not-this.delivery.puppetlabs.net","type":"win-2012r2-x86_64","engine":"vmpooler"}],"audit_log":{"2019-12-13 16:46:14 +0000":"Allocated not-this.delivery.puppetlabs.net for job 1576255565159"},"request":{"resources":{"win-2012r2-x86_64":1},"job":{"id":"1576255565159","tags":{"user":"not-test-user"},"user":"not-test-user","time-received":1576255566},"priority":1}}
         ]'
         # rubocop:enable Layout/LineLength
         @token = 'utpg2i2xswor6h8ttjhu3d47z53yy47y'
@@ -101,7 +145,7 @@ describe ABS do
         # rubocop:disable Layout/LineLength
         @active_requests_response = '
         [
-          "{ \"state\":\"allocated\", \"last_processed\":\"2020-01-17 22:29:13 +0000\", \"allocated_resources\":[{\"hostname\":\"craggy-chord.delivery.puppetlabs.net\", \"type\":\"centos-7-x86_64\", \"engine\":\"vmpooler\"}, {\"hostname\":\"visible-revival.delivery.puppetlabs.net\", \"type\":\"centos-7-x86_64\", \"engine\":\"vmpooler\"}], \"audit_log\":{\"2020-01-17 22:28:45 +0000\":\"Allocated craggy-chord.delivery.puppetlabs.net, visible-revival.delivery.puppetlabs.net for job 1579300120799\"}, \"request\":{\"resources\":{\"centos-7-x86_64\":2}, \"job\":{\"id\":\"1579300120799\", \"tags\":{\"user\":\"test-user\"}, \"user\":\"test-user\", \"time-received\":1579300120}, \"priority\":3}}"
+          { "state":"allocated", "last_processed":"2020-01-17 22:29:13 +0000", "allocated_resources":[{"hostname":"craggy-chord.delivery.puppetlabs.net", "type":"centos-7-x86_64", "engine":"vmpooler"}, {"hostname":"visible-revival.delivery.puppetlabs.net", "type":"centos-7-x86_64", "engine":"vmpooler"}], "audit_log":{"2020-01-17 22:28:45 +0000":"Allocated craggy-chord.delivery.puppetlabs.net, visible-revival.delivery.puppetlabs.net for job 1579300120799"}, "request":{"resources":{"centos-7-x86_64":2}, "job":{"id":"1579300120799", "tags":{"user":"test-user"}, "user":"test-user", "time-received":1579300120}, "priority":3}}
         ]'
         @return_request = { '{"job_id":"1579300120799","hosts":{"hostname":"craggy-chord.delivery.puppetlabs.net","type":"centos-7-x86_64","engine":"vmpooler"},{"hostname":"visible-revival.delivery.puppetlabs.net","type":"centos-7-x86_64","engine":"vmpooler"}}'=>true }
         # rubocop:enable Layout/LineLength