REQUIRED INFORMATION

Ext version tested:
sencha-touch-2.1

Description:
I am not sure that this can be defined as a bug, maybe it is the intended behavior...
I wasn't able to change the localStorage copy of the app.json of a native app. Therefor, delivering a new app.json file with each version only impacts new installs ,not version updates.
This settings gives developers no flexibility of changing the app.json file. (on my specific scenario I was also required remove app.js & app.css from local storage).

Possible fix:
Modifying the source code of touch/microloader/production.js:
  • Adding a single new line to getManifestStorageKey() function:
    Code:
    function getManifestStorageKey(id) {
  documentUri = documentUri.replace('index.html', ''); // for some reason, the file name in localStorage was index.htmlapp.json, so this fixes that
  return id + '-' + documentUri + manifestFile;
}
  • Adding a single-time procedure to Ext.blink(). The procedure resets all the localStorage entries that contains the ManifestStorageKey string:
    Code:
    Ext.blink = function(manifest) {
  
  /* NEW ADDED CODE */
  var mykey = 'JsonOverriden'; //define some unique key
  var JsonOverriden = retrieve(mykey); // retrieve(key) is basically: localStorage.getItem(key);
  var manifestStorageKey = getManifestStorageKey(manifest.id);


  if (!JsonOverriden){
    var id = manifest.id;
    for (i in localStorage){
      if (i.indexOf(id) != -1 )
        localStorage.removeItem(i)
    }


    store(mykey, true); // save a flag (mykey) to localStorage, so this procedure runs only once
    documentLocation.reload();
    return;
  }
  /* END OF ADDED CODE */
  
  var manifestContent = retrieve(manifestStorageKey);


  writeMeta('viewport', 'width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no');
  writeMeta('apple-mobile-web-app-capable', 'yes');
  writeMeta('apple-touch-fullscreen', 'yes');


  if (manifestContent) {
    manifest = new Manifest(manifestContent);
    blinkOnDomReady(manifest);
 } else { 
    requestXhr(manifestFile, function(content) {
      manifest = new Manifest(content);
      manifest.store();
      blinkOnDomReady(manifest);
    });
  }
};
Operating System:
  • Win 7