PI56259: SAFARI PRIVATE BROWSING MODE TRIGGERS UNCAUGHT EXCEPTION IN WORKLIGHT.JS

IBM MobileFirst Platform Foundation Interim Fix README for 7.1
IBM MobileFirst Platform Foundation Interim Fix README for 7.0
IBM MobileFirst Platform Foundation Interim Fix README for 6.3
IBM Worklight Interim Fix README for 6.2.0.1

APAR status

• Closed as program error.

Error description

• In Safari private Browsing mode, during the app start before
  custom code is triggered, we see an uncaught exception
  in worklight.js:
  ==================================
        /*
         *  INIT - Load state if persisted. Else get default state
         */
      (function() {
          if (typeof(Storage) !== 'undefined') {
              var configurationString = null;
              if (__usingLocalConfiguration()) {
                  configurationString = localStorage.getItem
  (KEY_LOCAL_STORAGE_CONFIG);
              } else {
                  configurationString = localStorage.getItem
  (KEY_REMOTE_STORAGE_CONFIG);
              }
  
              if (configurationString === null) {
                  var state = WL.Logger.__state();
                  state.maxFileSize = DEFAULT_MAX_STORAGE_SIZE;
                  WL.Logger.__updateState(state);
  
                  var stateString = JSON.stringify(state);
                  localStorage.setItem(KEY_LOCAL_STORAGE_CONFIG,
                  stateString);
                 /***NOTE: uncaught exception on setItem() ***/
              } else {
              var configuration = JSON.parse(configurationString);
              WL.Logger.__updateState(configuration);
              }
          }
      })();
  ==================================
  This symptom was reported only in Safari Private browsing mode.
  

Local fix

• Similar case reported at:
  http://stackoverflow.com/questions/21159301/quotaexceedederror-d
  om-exception-22-an-attempt-was-made-to-add-something-to-st
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * This affects users that are using the built application in   *
  * private web browsing.                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Private web browsing does not support using local storage.   *
  * The Logger API causes an exception when initializing and     *
  * blocks Worklight/MobileFirst Platform Foundation from        *
  * loading in private browsing.                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * -                                                            *
  ****************************************************************
  

Problem conclusion

• A change has been made so that this situation is no longer
  blocked. Private mode is now supported.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WL/MFPF ENTERPR

• Fixed component ID

  5725I4300

Applicable component levels

• R620 PSY

     UP

• R630 PSY

     UP

• R700 PSY

     UP

• R710 PSY

     UP