fix: ClientException: Invalid content-length header [-1] when reading version.json on a Firefox extension

[Chralu]

Description

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Related Issues

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• Fix Small PR fixing dart format on android_alarm_manager_plus #123
• Related [package_info_plus] Web: fail to get PackageInfo (version) offline #456

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I titled the PR using Conventional Commits.
• I did not modify the CHANGELOG.md nor the plugin version in pubspec.yaml files.
• All existing and new tests are passing.
• The analyzer (flutter analyze) does not report any problems on my PR.

Breaking Change

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• Yes, this is a breaking change (please indicate that with a ! in the title as explained in Conventional Commits).
• No, this is not a breaking change.

[miquelbeltran]

Hi @Chralu do you plan to do any changes here or can the PR be merged?

[Chralu]

Hi @miquelbeltran ,

my PR partially resolves the issue. We still encounter the ClientException, which is problematic.
Because of this, I would not recommand to merge it.

To completely resolve the issue, I see two options :

1. Fix upstream http lib.
2. Use Dio instead of http.

Introducing a new dependency is a big deal, so I wonder what the core team thinks about it.

[miquelbeltran]

Or maybe this is a bug in Mozilla.

In either case, then let's close this PR, and when a proper solution is available create a new one.

[miquelbeltran]

As mentioned, I will close this PR for the time being until a complete solution to the mozilla extensions is found. We continue the discussion here: #3028