dio
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Flutter Web
New Issue Checklist
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Issue Info
| Info | Value | |
|---|---|---|
| Platform Name | e.g. flutter / ios / android | |
| Platform Version | e.g. 1.5.0 / 12.0 / 9.0 | |
| Dio Version | e.g. 2.1.0 / 1.0.17 | |
| Android Studio / Xcode Version | e.g. Android Studio 3.3.2 / Xcode 10.2.1 | |
| Repro rate | e.g. all the time (100%) / sometimes x% / only once | |
| Repro with our demo prj | e.g. does it happen with our demo project? | |
| Demo project link | e.g. link to a demo project that highlights the issue |
Issue Description and Steps
Please fill in the detailed description of the issue (full output of any stack trace, compiler error, ...) and the steps to reproduce the issue.
Platform Name : Flutter Web Platform Version Flutter 2.13.0-0.0.pre.747 • channel master Dio Version : ^4.0.6 Android Studio: 4.1.1 Repro rate : 100%
Hi, I am using Dio lib but I am facing an issue when I want to use it with Flutter Web. I can't do any request.
Dio implementation
My Server log
FYI if I do the request from Android mobile is working fine but from a browser not
Does your web server provide the correct headers for CORS? If you're requesting from localhost, it may fail as the OPTIONS request fails. That's also probably why your webserver fails too, 'cause of the OPTIONS request done in pre-flight.
Perhaps your issue is due to CORS taking place, which doesn't really happen on Android 'cause it's a native call there instead of the XHR your browser performs...
Open DevTools and have a look at the request it performs, then fix stuff accordingly. Handle the OPTIONS call first, then see what's going on with CORS.
