[jira] [Created] (FLINK-8912) Web UI does not render error messages correctly in FLIP-6 mode

["Gary Yao (JIRA)" <ji...@apache.org>]

Gary Yao created FLINK-8912:
-------------------------------

             Summary: Web UI does not render error messages correctly in FLIP-6 mode
                 Key: FLINK-8912
                 URL: https://issues.apache.org/jira/browse/FLINK-8912
             Project: Flink
          Issue Type: Bug
          Components: Webfrontend
    Affects Versions: 1.5.0, 1.6.0
         Environment: commit: c531486288caf5241cdf7f0f00f087f3ce82239f
            Reporter: Gary Yao
             Fix For: 1.5.0


*Description*

The Web UI renders error messages returned by the REST API incorrectly, e.g., on the job submission page. The JSON returned by the REST API is rendered as a whole. However, the UI should only render the contents of the {{errors}} field.

*Steps to reproduce*

Submit {{examples/streaming/SocketWindowWordCount.jar}} without specifying program arguments. Error message will be rendered as follows:
{noformat}
{"errors":["org.apache.flink.client.program.ProgramInvocationException: The program plan could not be fetched - the program aborted pre-maturely.\n\nSystem.err: (none)\n\nSystem.out: No port specified. Please run 'SocketWindowWordCount --hostname <hostname> --port <port>', where hostname (localhost by default) and port is the address of the text server\nTo start a simple text server, run 'netcat -l <port>' and type the input text into the command line\n"]}
{noformat}
Note that flip6 mode must be enabled.





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