I have been getting 502 errors for a rewrite to my API which is hosted on Heroku. My Netlify site name is furnish-app.netlify.app. My _redirects file looks like this: /api/* https://furnish-app.herokuapp.com/api/:splat 200 /* /index.html 200 https://furnish-app.netlify.app/* https://www.furnish.ap…

Hey @aron It seems like our reverse-proxy does not like the fact that one of the response headers is malformed: $ curl -v "https://furnish-app.herokuapp.com/api/stylequiz/1?productCategory=displaycabinet" -o /dev/null ... < Access-Control-Allow-Methods : GET, POST, PUT, DELETE, OPTIONS Note the s…

hi there, is this related at all? [image] Error decoding lambda response Support PLEASE help us help you by writing a good post! Site Name: https://5edb48143846e0b608a234a0--heuristic-yonath-e84bf6.netlify.app/ DNS issues? Seems not to be a DNS issue since the live prev…

Hi, thanks for replying. I don’t think so. I’m not using functions or lambdas, I’m just using a _redirects file so I don’t think there’s anything I could have done wrong.

Hey @aron :wave:t2: I’m currently looking at this. I wonder if there’s an issue with the splat redirect no passing through query parameters. When you hit the Heroku endpoint without a query param it renders a 400… so it’s possible that Netlify’s middle-man rewriting is spitting back a 502 to you if…

Oh. Well, terminal digging helps… Are you stringifying your JSON before you return it from your API? Hitting https://furnish-app.herokuapp.com/api/stylequiz/1?productCategory=displaycabinet from my browser renders fine but hitting it from the CLI gives me HTTP/1.1 200 OK Connection: keep-alive Con…

Hi @jonsully thanks for looking into this! Hm that is very odd. I am most definitely stringifying my JSON, I’m not trying to send unstringified JS objects over the wire - I’m not even using a Node app, it’s an F# app that requires me to stringify all responses. What CLI are you using to make that …

Actually I wonder if the problem could be that the response is gzip encoded… That could explain why you’re seeing only binary data in the CLI you’re using, if that CLI isn’t aware of gzip encoded responses, unlike the browser and cURL. If that is the cause though then: Why is Netlify trying to de…

I don’t know that we are trying to decode the response - I see a connection error (from our CDN node to heroku) in our internal logs. While there was an outage at heroku today on this topic: Heroku Status - your logs are older and seem unrelated (though the symptoms were the same at the time). I’v…

Unfortunately beyond getting a bug filed our team did not get to the bottom of it. Sorry I don’t have better news for you today, but I will follow up here in case we do get a fix for that bug.

That fixed it! Excellent find, thank you so much :tada::pray: This link now works https://www.furnish.app/api/stylequiz/1?productCategory=displaycabinet Odd that it changed all of a sudden though, looks like the reverse proxy was more forgiving of malformed response headers before for some reason. …

Getting 502 errors from URL rewrite

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perry June 8, 2020, 6:26pm 2

hi there, is this related at all?

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Getting 502 errors from URL rewrite

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