XMLHttpRequest Errror on Flutter Web App using parse server

[Shankar-Joshi]

New Issue Checklist

• [ x] I am not disclosing a vulnerability.
• [x ] I am not just asking a question.
• [x ] I have searched through existing issues.
• [ x] I can reproduce the issue with the latest version of Parse Server and the Parse Flutter SDK.

Issue Description

I am getting XMLHttpRequest Errror while trying to connect to parse from flutter web app. I did see in the docs for web support it says "Due to Cross-origin resource sharing (CORS) restrictions, this requires adding X-Parse-Installation-Id as an allowed header to parse-server". But I looked everywhere and I don't know where to add this X-Parse_installation-id and how to add it. I couldn't find anything anywhere. Can you please help?

Steps to reproduce

When you try to connect to parse server from flutter web app, you receive this error.

Actual Outcome

╭-- Parse Response
Class: _User
Function: ParseApiRQ.login
Status Code: -1
Type: UnknownError
Exception: XMLHttpRequest error.

Expected Outcome

Successful connection to parse server.

Environment

sdk: ">=2.16.2 <3.0.0"

Parse Flutter SDK

• SDK version: 2.10.4
• Operating system version: Windows 10

Server

• Parse Server version: 3.1.0

Logs

╭-- Parse Response
Class: _User
Function: ParseApiRQ.login
Status Code: -1
Type: UnknownError
Exception: XMLHttpRequest error.
╰--

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[RodrigoSMarques]

This is not a package issue, but your Parse server configuration issues.

It is described in the package documentation and we also have this issue here.

Tip: Use the repository search to find issues.

[mtrezza]

I'm closing this as it does not seem to be a Parse Flutter SDK issue.

• For help with Parse Platform we recommend our community forum
• For coding questions we recommend Stack Overflow using the parse-platform tag
• For network and server questions we recommend ServerFault using the parse-server tag