Bad regex in ” + SETTING_CORS_ALLOW_ORIGIN.getKey() + “: ” + origin + ” – Elasticsearch Error How To Solve Related Issues



Bad regex in ” + SETTING_CORS_ALLOW_ORIGIN.getKey() + “: ” + origin + ” – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 

 

This guide will help you check for common problems that cause the log “Bad regex in ” + SETTING_CORS_ALLOW_ORIGIN.getKey() + “: ” + origin + “” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: .


Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”Bad regex in [” + SETTING_CORS_ALLOW_ORIGIN.getKey() + “]: [” + origin + “]”classname  is CorsHandler.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

builder = CorsHandler.Config.Builder.forOrigins(RestUtils.corsSettingAsArray(origin));
  } else {
  builder = CorsHandler.Config.Builder.forPattern(p);
  }
  } catch (PatternSyntaxException e) {
  throw new SettingsException("Bad regex in [" + SETTING_CORS_ALLOW_ORIGIN.getKey() + "]: [" + origin + "]"; e);
  }
  }
  if (SETTING_CORS_ALLOW_CREDENTIALS.get(settings)) {
  builder.allowCredentials();
  }

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

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