Reproduction steps:
1. Open the attached “repro_IN-84798“ project
2. Go to “File → Build Settings…“ (or “Build Profiles“ on Unity 6)
3. Switch platform to “WebGL”
4. Add the “Scenes/SampleScene.unity“ Scene to the build index and press “Build And Run“
5. Once the Player opens, press the right button anywhere on your browser and select “Inspect“
6. Open the “Network“ tab
7. In the Player, click the “Button“ button and wait for all of the addressables bundles to be downloaded
8. Once they’re downloaded, refresh the browser page
9. In the Player, click the “Button“ button again
10. Observe the traffic in the “Network“ tab

Expected result: Addressable bundles are retrieved from the cache
Actual result: Addressable bundles are redownloaded with a new network request

Reproducible with: 2022.3.48f1, 6000.0.21f1
Couldn’t test with: 2021.3.44f1 - “RuntimeError: null function or function signature mismatch error is thrown” each time the button is pressed

Reproducible on: macOS 14.6.1 (user’s), Windows 10 (22H2)
Not reproducible on: No other environments tested

Note: Reproducible on Google Chrome (129.0.6668.58), Mozilla Firefox (130.0.1), Opera (113.0.5230.86)