Hello,

I am using php cURL to access my Salesforce instance using the REST API.  Without any change on my part, it stopped responding on 20th December and has not worked since then.

I have investigated and found that:

1.  The authentication step is working (goes to https://login.salesforce.com)
2.  All other requests to https://myinstance.salesforce.com/services......  fail with error 400
3.  The same requests work in REST Explorer by simply copy/paste the request line

This behaviour looks like Salesforce is rejecting anything coming from my site through the API to myinstance.salesforce.com.

Did any change take place on or about 20th December in the way REST API is called?

If Salesforce has decided that my site or ISP is a bad risk, how can I have that addressed?  I don't expect that it the case because the authentication works.

Merry Christmas to all.

Tim