Editing SPO 2013 Master Pages - no effect and where do you place javascript code block?

Question

I'm trying to add a jQueryt block to oslo master page on spo 2013. check out, make changes and save, but no apparent impact. Am I placing javascript in the wrong place? do I need to do any additional steps. I'm using spd 2013.

Basically I want to add some code to keep all users except those with full control out of all pages except the site pages. Possible? if anybody is doing anything like this please share.

I'm placing this code right above the (/SharePoint:SharePointForm) tag close at the tail end of the master page

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js">

<script>
alert("wtf");   

$(document).ready(function () { 

var currentUser;
// Ensure that the SP.js is loaded
if (SP.ClientContext != null) {
  SP.SOD.executeOrDelayUntilScriptLoaded(getCurrentUser, 'SP.js');
}
else {
  SP.SOD.executeFunc('sp.js', null, getCurrentUser);
}

function getCurrentUser() {
  var context = new SP.ClientContext.get_current();
  var web = context.get_web();
  currentUser = web.get_currentUser();
  context.load(currentUser);
  context.executeQueryAsync(onSuccessMethod, onRequestFail);
}

function onSuccessMethod(sender, args) {
  var account = currentUser.get_loginName();
  var currentUserAccount = account.substring(account.indexOf("|") + 1);
  alert(currentUserAccount);
}
// This function runs if the executeQueryAsync call fails.
function onRequestFail(sender, args) {
  alert('request failed' + args.get_message() + '\n' + args.get_stackTrace());
}

});

</script>

Answer 1

It depends on the javascript that you have inserted.

Not all javascript placed in the head takes effect if it jQuery for instance. Try placing the javascript block at the bottom of the masterpage, just before the closing form tag.

If that doesn't do any changes, check if you need to publish the masterpage or something similar.

Also check if the javascript throws any errors using WebDeveloper (F12, IE) or Firebug (F12, FireFox add-on).

Answer 2

Try turning off MDS (minimal download strategy). This sometimes causes weird behavior with scripts.