Implement Document.referrer
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Remove unnecessary 'unwrap' calls from ImageCacheThread
Fixes#12390.
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Remove DataSlice, fix#12249
r? @Manishearth
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1. More complete origin check in FileManagerThreadMsg
2. Add reference counting logic to file manage store and script API
3. Integrate the support of slicing
Implement private browsing for mozbrowser
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Support the `mozprivatebrowsing` attribute on mozbrowser iframes. This separates the non-private and private sessions in terms of cookies, HSTS lists, cached HTTP credentials, HTTP connection pools, and web storage. The private session is shared between all private mozbrowsers, and lasts until shutdown.
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- Hack to stop hitting unreachable on referer
- add fetch_done to make sync work
- Make datauris work by setting the response URI, spec bug
- Allow for empty bodies
- Make request bodies work (pass to http, fix fencepost in iter count)
Add blob loader
Add a blob loader to implement [Blob URL](https://w3c.github.io/FileAPI/#url). The related interfaces to script thread are also declared.
Progressing in parallel with PR #11534. Related to #11131.
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Allowed services support
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Implement meta referrer policy delivery (3)
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Extend WebBluetooth with included services
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