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Response error 303
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June 28, 2019
2:41 am
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dejan
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I have made some project using wemos d1r2 everything was perfect for a month and than yesterday started error 303 no way to read my channel or even public one from thing speak example . Writing to a channel works fine. Any idea why? Thing speak library 1.5.0

June 28, 2019
4:26 am
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pier

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I have the same problem.

June 28, 2019
4:57 am
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DanRoid

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I am having the same problem. I have an ESP8266 device (Wemos D1 mini) that reads the temperature from my account that has been working for over 2 years but suddenly stopped working a few days ago returning status -303. Another ESP8266 device is still successfully uploading data. Both devices use the Arduino header file ThingSpeak.h.

June 28, 2019
5:09 am
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dejan
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I'am glad that i am not alone hope someone from thing speak will answer

June 28, 2019
5:56 am
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foivaras
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Intentionally or not, they removed the "content-length" header from the http response. The thingspeak library expects this header to correctly parse the response,
therefore they managed to break their library.

@ Thingpeak, was that an intentional change or a bug that will be fixed?
If it was intentional, are you going to update the official arduino thingspeak library accordingly?

Thanks.

June 28, 2019
10:25 am
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cstapels
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We are actively looking into this error and will post here when we find more info.

June 28, 2019
11:23 am
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cstapels
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We are able to reproduce the issue. Will continue to update.

June 28, 2019
6:04 pm
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cstapels
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You may be able to temporarily fix the issue by backing up to the previous version of the ThingSpeak communication library. It is only the latest version that uses the "content-length" header. We will continue to report on the issue here and let you know when it is resolved.

June 29, 2019
4:43 am
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vahiwe
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Having the same issue with my project using wemos D1. please wen will it be rectified?

June 29, 2019
6:04 am
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DanRoid

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cstapels said

You may be able to temporarily fix the issue by backing up to the previous version of the ThingSpeak communication library. It is only the latest version that uses the "content-length" header. We will continue to report on the issue here and let you know when it is resolved.  

I have tried all the version 1.4.x libraries and although there was now no error in retrieving data, the data itself was wrong - value is always 8 instead of the current 22 degrees here in the north east of England.

June 29, 2019
11:20 am
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cstapels
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We have released an update and the problem should be fixed without rolling back the ThingSpeak library. Please confirm here if you can.

June 29, 2019
12:43 pm
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dejan
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Confirmed for me worksLaugh

June 29, 2019
1:11 pm
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DanRoid

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cstapels said

We have released an update and the problem should be fixed without rolling back the ThingSpeak library. Please confirm here if you can.  

Confirmed, working again now, many thanks.

June 29, 2019
3:26 pm
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pier

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Working

June 30, 2019
4:39 pm
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vahiwe
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now working......... Thanks

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