Doesn't work when using privacy plugins

[steebchen]

The jsonp request simply times out when you have privacy plugins like Disconnect or Ghostery installed. It also happens when you use the privacy mode in Firefox Quantum. The error does get caught, but jsonp's default timeout is 60s. Do you think we could this set to maybe, let's say, 5 or 10 seconds, using jsonp's timeout option? I don't think there's too much value waiting for a request if it didn't respond after 5 seconds - it will likely not ever return.

[benjaminhoffman]

looking into this.

[benjaminhoffman]

interesting. we can do that. but the bigger question is, how to make it work with privacy plugins? there's no reason it shouldn't.

anyway, would something like this work?

for this line: https://github.com/benjaminhoffman/gatsby-plugin-mailchimp/blob/master/src/index.js#L14

could be this: return jsonp(url, { param: 'c', timeout: 60000 }, (err, data) => {

thoughts? want to open a PR?

[steebchen]

Well your line of code simply wouldn't change anything - jsonp uses 60000 as timeout by default. I'd suggest to lower this value to 5000 or 10000.

What mailchimp does by default is setting the "action" attribute on the form so it simply fallbacks to POSTing to a new tab where you can confirm your subscription. However, I'm not sure how to do this here because we don't know whether the request will fail before we send it.. and we can't open a new window because it will be blocked by popup blockers.

[benjaminhoffman]

hmm. so not much in terms of finding a workable solution? i think the next best answer is to leave a comment in the README. any ideas on this one?

[steebchen]

No, but as I said I would just use a timeout of around 5 seconds. An error message is better than a 60s timeout where the user bounces because he doesn't know what's happening. The error message could include that adblockers or privacy plugins should be disabled.

[benjaminhoffman]

8fffe3a

thx again @steebchen for the issue and suggested fix!