Munchkin code causing site to be unresponsive

[John_Wallace]

I noticed I sometimes get a "net::ERR_CONNECTION_RESET" when our site tries to get the munchkin.js file causing the site to be unresponsive for several seconds.  I tried putting the munchkin code in both the head and at the end of the </body> but does not seem to make a difference.  Does anyone know why this could be happening?

[SanfordWhiteman]

URL, please.

[John_Wallace]

https://www.appneta.com

Thanks Sanford!  It does not happen all the time but enough to make it noticeable and annoying.

[Katherine_Zhu]

We're also seeing the same thing on our end, the behavior seen is super slow responses, we're taking the code out of our website & other properties for now. 

[SanfordWhiteman]

Loading the library JS asynchronously doesn't affect load performance unless you're also using old-school onLoad listeners (which you shouldn't be).

[Katherine_Zhu]

Thanks Sanford! Having our web dev take a look. 

[Xian_Chen]

Hi Sanford, 

We are using the async code detailed in your developers guide:

https://developers.marketo.com/javascript-api/lead-tracking/ 

There is a part that uses onload on line 20. Is that what you are referring to? 

[SanfordWhiteman]

No, I mean if you're using window.onload in your own code.

[John_Wallace]

If anyone else was experiencing this issue, there was indeed an issue with the munchkin code server in the San Jose datacenter that was causing the error.  

[SanfordWhiteman]

Obvs. not good, but if all assets are truly async (no accidental dependencies elsewhere in your code) a TCP reset wouldn't have side effects.