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https://sinatrarb.com
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Sinatra 2.0 NameError: uninitialized constant Rack::File::Iterator #1416

Closed jdblack closed 6 years ago

jdblack commented 6 years ago

I am getting an error with sinatra 2.0.1 (and 2.0.0) and rack 2.0.4 for a missing constant Rack::File::Iterator. I'm not sure what to do with this, as sinatra

Versions:

Sinatra Version: 2.0.1 Ruby version being used: 2.3.1p112

I, [2018-04-13T15:33:23.735659 #30384]  INFO -- : Caching chef-knife-i-02616b72f084ec56c-dev:1523484317
2018-04-13 15:33:23 - NameError - uninitialized constant Rack::File::Iterator:
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:261:in `body'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1084:in `invoke'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1093:in `dispatch!'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:924:in `block in call!'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1075:in `block in invoke'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1075:in `catch'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1075:in `invoke'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:924:in `call!'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:913:in `call'
    /var/lib/gems/2.3.0/gems/rack-protection-2.0.1/lib/rack/protection/xss_header.rb:18:in `call'
    /var/lib/gems/2.3.0/gems/rack-protection-2.0.1/lib/rack/protection/path_traversal.rb:16:in `call'
    /var/lib/gems/2.3.0/gems/rack-protection-2.0.1/lib/rack/protection/json_csrf.rb:26:in `call'
    /var/lib/gems/2.3.0/gems/rack-protection-2.0.1/lib/rack/protection/base.rb:50:in `call'
    /var/lib/gems/2.3.0/gems/rack-protection-2.0.1/lib/rack/protection/base.rb:50:in `call'
    /var/lib/gems/2.3.0/gems/rack-protection-2.0.1/lib/rack/protection/frame_options.rb:31:in `call'
    /usr/lib/ruby/vendor_ruby/rack/logger.rb:15:in `call'
    /var/lib/gems/2.3.0/gems/rack-2.0.4/lib/rack/common_logger.rb:33:in `call'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:231:in `call'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:224:in `call'
    /usr/lib/ruby/vendor_ruby/rack/head.rb:13:in `call'
    /var/lib/gems/2.3.0/gems/rack-2.0.4/lib/rack/method_override.rb:22:in `call'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/show_exceptions.rb:22:in `call'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:194:in `call'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1957:in `call'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1501:in `block in call'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1728:in `synchronize'
    /var/lib/gems/2.3.0/gems/sinatra-2.0.1/lib/sinatra/base.rb:1501:in `call'
    /var/lib/gems/2.3.0/gems/thin-1.7.2/lib/thin/connection.rb:86:in `block in pre_process'
    /var/lib/gems/2.3.0/gems/thin-1.7.2/lib/thin/connection.rb:84:in `catch'
    /var/lib/gems/2.3.0/gems/thin-1.7.2/lib/thin/connection.rb:84:in `pre_process'
    /var/lib/gems/2.3.0/gems/thin-1.7.2/lib/thin/connection.rb:50:in `block in process'
    /var/lib/gems/2.3.0/gems/eventmachine-1.2.5/lib/eventmachine.rb:1076:in `block in spawn_threadpool'
~/code/bleach$ cat Gemfile.lock
PATH
  remote: .
  specs:
    bleach (0.1.0)
      awesome_print (~> 1)
      aws-sdk (~> 3)
      chef (~> 12)
      chef-api (~> 0)
      logger (~> 1)
      memcached (~> 1.8)
      net-ping (~> 2)
      pry (~> 0)
      rest-client (~> 2)
      sinatra (= 2.0.1)
      thin (~> 1.7)

GEM
  remote: https://rubygems.org/
  specs:
    addressable (2.5.2)
      public_suffix (>= 2.0.2, < 4.0)
    awesome_print (1.8.0)
    aws-partitions (1.80.0)
    aws-sdk (3.0.1)
      aws-sdk-resources (~> 3)
    aws-sdk-acm (1.6.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-acmpca (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-alexaforbusiness (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-apigateway (1.10.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-applicationautoscaling (1.8.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-applicationdiscoveryservice (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-appstream (1.7.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-appsync (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-athena (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-autoscaling (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-autoscalingplans (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-batch (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-budgets (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloud9 (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-clouddirectory (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudformation (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudfront (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudhsm (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudhsmv2 (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudsearch (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudsearchdomain (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudtrail (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudwatch (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudwatchevents (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cloudwatchlogs (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-codebuild (1.7.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-codecommit (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-codedeploy (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-codepipeline (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-codestar (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cognitoidentity (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cognitoidentityprovider (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-cognitosync (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-comprehend (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-configservice (1.8.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-connect (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-core (3.19.0)
      aws-partitions (~> 1.0)
      aws-sigv4 (~> 1.0)
      jmespath (~> 1.0)
    aws-sdk-costandusagereportservice (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-costexplorer (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-databasemigrationservice (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-datapipeline (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-dax (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-devicefarm (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-directconnect (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-directoryservice (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-dynamodb (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-dynamodbstreams (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-ec2 (1.29.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-ecr (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-ecs (1.12.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-efs (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-elasticache (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-elasticbeanstalk (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-elasticloadbalancing (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-elasticloadbalancingv2 (1.8.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-elasticsearchservice (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-elastictranscoder (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-emr (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-firehose (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-fms (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-gamelift (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-glacier (1.6.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-glue (1.7.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-greengrass (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-guardduty (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-health (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-iam (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-importexport (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv2 (~> 1.0)
    aws-sdk-inspector (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-iot (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-iotdataplane (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-iotjobsdataplane (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-kinesis (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-kinesisanalytics (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-kinesisvideo (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-kinesisvideoarchivedmedia (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-kinesisvideomedia (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-kms (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-lambda (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-lambdapreview (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-lex (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-lexmodelbuildingservice (1.5.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-lightsail (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-machinelearning (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-marketplacecommerceanalytics (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-marketplaceentitlementservice (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-marketplacemetering (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-mediaconvert (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-medialive (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-mediapackage (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-mediastore (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-mediastoredata (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-migrationhub (1.1.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-mobile (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-mq (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-mturk (1.3.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-opsworks (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-opsworkscm (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-organizations (1.8.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-pinpoint (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-polly (1.4.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-pricing (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-rds (1.15.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-redshift (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-rekognition (1.2.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-resourcegroups (1.0.0)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-resourcegroupstaggingapi (1.0.1)
      aws-sdk-core (~> 3)
      aws-sigv4 (~> 1.0)
    aws-sdk-resources (3.14.0)
      aws-sdk-acm (~> 1)
      aws-sdk-acmpca (~> 1)
      aws-sdk-alexaforbusiness (~> 1)
      aws-sdk-apigateway (~> 1)
      aws-sdk-applicationautoscaling (~> 1)
      aws-sdk-applicationdiscoveryservice (~> 1)
      aws-sdk-appstream (~> 1)
      aws-sdk-appsync (~> 1)
      aws-sdk-athena (~> 1)
      aws-sdk-autoscaling (~> 1)
      aws-sdk-autoscalingplans (~> 1)
      aws-sdk-batch (~> 1)
      aws-sdk-budgets (~> 1)
      aws-sdk-cloud9 (~> 1)
      aws-sdk-clouddirectory (~> 1)
      aws-sdk-cloudformation (~> 1)
      aws-sdk-cloudfront (~> 1)
      aws-sdk-cloudhsm (~> 1)
      aws-sdk-cloudhsmv2 (~> 1)
      aws-sdk-cloudsearch (~> 1)
      aws-sdk-cloudsearchdomain (~> 1)
      aws-sdk-cloudtrail (~> 1)
      aws-sdk-cloudwatch (~> 1)
      aws-sdk-cloudwatchevents (~> 1)
      aws-sdk-cloudwatchlogs (~> 1)
      aws-sdk-codebuild (~> 1)
      aws-sdk-codecommit (~> 1)
      aws-sdk-codedeploy (~> 1)
      aws-sdk-codepipeline (~> 1)
      aws-sdk-codestar (~> 1)
      aws-sdk-cognitoidentity (~> 1)
      aws-sdk-cognitoidentityprovider (~> 1)
      aws-sdk-cognitosync (~> 1)
      aws-sdk-comprehend (~> 1)
      aws-sdk-configservice (~> 1)
      aws-sdk-connect (~> 1)
      aws-sdk-costandusagereportservice (~> 1)
      aws-sdk-costexplorer (~> 1)
      aws-sdk-databasemigrationservice (~> 1)
      aws-sdk-datapipeline (~> 1)
      aws-sdk-dax (~> 1)
      aws-sdk-devicefarm (~> 1)
      aws-sdk-directconnect (~> 1)
      aws-sdk-directoryservice (~> 1)
      aws-sdk-dynamodb (~> 1)
      aws-sdk-dynamodbstreams (~> 1)
      aws-sdk-ec2 (~> 1)
      aws-sdk-ecr (~> 1)
      aws-sdk-ecs (~> 1)
      aws-sdk-efs (~> 1)
      aws-sdk-elasticache (~> 1)
      aws-sdk-elasticbeanstalk (~> 1)
      aws-sdk-elasticloadbalancing (~> 1)
      aws-sdk-elasticloadbalancingv2 (~> 1)
      aws-sdk-elasticsearchservice (~> 1)
      aws-sdk-elastictranscoder (~> 1)
      aws-sdk-emr (~> 1)
      aws-sdk-firehose (~> 1)
      aws-sdk-fms (~> 1)
      aws-sdk-gamelift (~> 1)
      aws-sdk-glacier (~> 1)
      aws-sdk-glue (~> 1)
      aws-sdk-greengrass (~> 1)
      aws-sdk-guardduty (~> 1)
      aws-sdk-health (~> 1)
      aws-sdk-iam (~> 1)
      aws-sdk-importexport (~> 1)
      aws-sdk-inspector (~> 1)
      aws-sdk-iot (~> 1)
      aws-sdk-iotdataplane (~> 1)
      aws-sdk-iotjobsdataplane (~> 1)
      aws-sdk-kinesis (~> 1)
      aws-sdk-kinesisanalytics (~> 1)
      aws-sdk-kinesisvideo (~> 1)
      aws-sdk-kinesisvideoarchivedmedia (~> 1)
      aws-sdk-kinesisvideomedia (~> 1)
      aws-sdk-kms (~> 1)
      aws-sdk-lambda (~> 1)
      aws-sdk-lambdapreview (~> 1)
      aws-sdk-lex (~> 1)
      aws-sdk-lexmodelbuildingservice (~> 1)
      aws-sdk-lightsail (~> 1)
      aws-sdk-machinelearning (~> 1)
      aws-sdk-marketplacecommerceanalytics (~> 1)
      aws-sdk-marketplaceentitlementservice (~> 1)
      aws-sdk-marketplacemetering (~> 1)
      aws-sdk-mediaconvert (~> 1)
      aws-sdk-medialive (~> 1)
      aws-sdk-mediapackage (~> 1)
      aws-sdk-mediastore (~> 1)
      aws-sdk-mediastoredata (~> 1)
      aws-sdk-migrationhub (~> 1)
      aws-sdk-mobile (~> 1)
      aws-sdk-mq (~> 1)
      aws-sdk-mturk (~> 1)
      aws-sdk-opsworks (~> 1)
      aws-sdk-opsworkscm (~> 1)
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PLATFORMS
  ruby

DEPENDENCIES
  bleach!

BUNDLED WITH
   1.16.1
jdblack commented 6 years ago

I finally found the problem.

The problem occurs when the ubuntu package "ruby-rack" is installed on ubuntu 16.04 systems. It installs an older version of rack (1.6.4, I think?) that somehow breaks rack 2.0.4