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25a13cb09b
We only use zxcvbn in the main webapp for checking the user's password in the change password form. Since zxcvbn is a very large javascript library (~700KB), loading it asynchronously only when a user is trying to change their password results in a significant performance improvement for loading the Zulip webapp on a slow network. Fixes #263.
47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
// Miscellaneous early setup.
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var csrf_token;
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$(function () {
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// Display loading indicator. This disappears after the first
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// get_events completes.
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if (page_params.have_initial_messages && !page_params.needs_tutorial) {
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loading.make_indicator($('#page_loading_indicator'), {text: 'Loading...'});
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} else if (!page_params.needs_tutorial) {
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$('#first_run_message').show();
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}
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// This requires that we used Django's {% csrf_token %} somewhere on the page.
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csrf_token = $('input[name="csrfmiddlewaretoken"]').attr('value');
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$.ajaxSetup({
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beforeSend: function (xhr, settings) {
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if (!(/^http:.*/.test(settings.url) || /^https:.*/.test(settings.url))) {
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// Only send the token to relative URLs i.e. locally.
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xhr.setRequestHeader("X-CSRFToken", csrf_token);
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}
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}
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});
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// For some reason, jQuery wants this to be attached to an element.
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$('body').ajaxError(function (event, xhr) {
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if (xhr.status === 401) {
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// We got logged out somehow, perhaps from another window or a session timeout.
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// We could display an error message, but jumping right to the login page seems
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// smoother and conveys the same information.
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window.location.replace(page_params.login_page);
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}
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});
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if (typeof $ !== 'undefined') {
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$.fn.expectOne = function () {
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if (blueslip && this.length !== 1) {
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blueslip.error("Expected one element in jQuery set, " + this.length + " found");
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}
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return this;
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};
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}
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});
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