Update "Join Community" link in footer

[SathyaJayabal]

Join community link in the footer must point to new auth0 registration page

cc @sachin-maheshwari

[sachin-maheshwari]

@luizrrodrigues please fix on priority. We are targeting prod release by next week (20 Oct 2020).

[sandhiyakavi]

@luizrrodrigues @sachin-maheshwari If user is logged in and click Join Community, 404 HTTP Error is displayed.(redirected to url https://www.topcoder-dev.com/challenges&utm_source=community)

Joincommunity_404_error.zip

[luizrrodrigues]

@sandhiyakavi I can't reproduce this issue, can you try clear cookies?

2020-10-14 11-16-42.zip

[luizrrodrigues]

cc @SathyaJayabal

[luizrrodrigues]

@SathyaJayabal @sandhiyakavi I'm able to reproduce now.

@sachin-maheshwari This issue coming from: https://github.com/topcoder-platform/tc-auth-lib/blob/b45d1fa474f3df217d1808c798fd771fc3405868/web-assets/js/setupAuth0WithRedirect.js#L46

let returnAppUrl = qs['retUrl'];
...
...
returnAppUrl += '&utm_source=' + utmSource;
...
...
if (isAuthenticated) {
    window.location = returnAppUrl;
} 

Missing ? between URL and params, I think can fix this with:

const returnAppUrl = new URL(qa['retUrl']);
...
...
returnAppUrl.searchParams.append('utm_source', utmSource);
...
...
if (isAuthenticated) {
    window.location = returnAppUrl.href;
} 

[sachin-maheshwari]

@LieutenantRoger good catch 👍

[sachin-maheshwari]

@sushilshinde just curious, what is use of passing parameters (utm_source=community&utm_campaign=tc-footer&utm_medium=promotion) -https://accounts-auth0.topcoder-dev.com/?utm_source=community&utm_campaign=tc-footer&utm_medium=promotion&retUrl=https%3A%2F%2Fwww.topcoder-dev.com%2Fchallenges
Still we are using for any tracking ? can we remove utm_source ?