wasm MIME type is not supported

[Mohammad Rafigh]

Bug Report

Problem

What is expected to happen?

application/wasm should be returned as MIME type for wasm files from static file server in iOS.

What does actually happen?

wasm libraries not working due to this error:
"Unexpected response MIME type. Expected 'application/wasm'"

Information

Here is an MR to Ionic that might be helpful:
https://github.com/ionic-team/capacitor/pull/5585/files

and another one in capacitor:
ionic-team/capacitor#6675

Command or Code

Just try to install and use a wasm library and run the app on simulator.

Environment, Platform, Device

Version information

Cordova: Cordova CLI 12.0.0, Cordova ios 7.0.0

Checklist

• I searched for existing GitHub issues
• I updated all Cordova tooling to most recent version
• I included all the necessary information above

[Michael Kamphausen]

I ran into the same problem with my project.
I find the Ionic PR helpful indeed. It can be applied to Cordova as well.

As a quick solution until #1374 is merged, the following code can be added to a project's config.xml at the <platform name="ios"> node. It ensures the necessary changes are inserted into the Info.plist file when the project is built, without the need to modify the local cordova-ios module:

<config-file parent="UTImportedTypeDeclarations" target="*-Info.plist">
    <array>
        <dict>
            <key>UTTypeConformsTo</key>
            <array>
                <string>public.data</string>
            </array>
            <key>UTTypeDescription</key>
            <string>WebAssembly</string>
            <key>UTTypeIdentifier</key>
            <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
            <key>UTTypeTagSpecification</key>
            <dict>
                <key>public.filename-extension</key>
                <string>wasm</string>
                <key>public.mime-type</key>
                <string>application/wasm</string>
            </dict>
        </dict>
    </array>
</config-file>