WhatsApp/0 returns content (preview generated) as expected while Whatsapp/2 doesn't #174

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1. thoop commented on Mar 28, 2019

   

   thoop

   on Mar 28, 2019

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   That is unexpected since the prerender-node middleware checks for WhatsApp as a substring of the incoming user agent (both lowercased before compared) So I would expect both of those requests to return a prerendered page.

   I'm not able to reproduce this in local testing either. Using both of those user agents seem to return a prerendered page for me when testing a website of mine with prerender-node installed.

   So when you use WhatsApp/2 is it just returning your javascript page?
2. paulincai commented on Mar 30, 2019

   

   paulincai

   on Mar 30, 2019

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   Hi @thoop, I would assume the prerendered page is returned cause I can see the response on the Prerender server console when I share a link on my mobile (tried both and Android phone and Iphone):

   NGINX:

   54.155.24.245 - - [30/Mar/2019:16:28:31 +0000] "GET /https://www.activitree.com/ HTTP/1.1" 200 41179 "-"                                                          
   "WhatsApp/2.19.34 A"   
   

   Prerender:

   2019-03-30T16:28:31.613Z got 200 in 13ms for https://www.activitree.com/ 
   

   This is similar to the responses when I share from Whatsapp on my MAC, the only difference is that MAC Whatsapp and browser Whatsapp show the preview. You can experience that with this link https://www.activitree.com and I can confirm in advance that the Prerender server will have similar responses (all my routes are Prerendered already.)
3. thoop commented on Apr 1, 2019

   

   thoop

   on Apr 1, 2019

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   Hmm, could it be possible that WhatsApp on mobile had a previously cached version of your page from before you installed Prerender? Otherwise, that seems like it's working as expected but WhatsApp just isn't showing the info properly.