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Application Cache / Manifest / Offline files not loading.
Reported by
jon...@googlemail.com,
Jan 16 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36 Steps to reproduce the problem: 1. View site using manifest file for offline page display and data capture whilst offline. 2. Select offline mode (or when no internet connection available. 3. No internet connection page displayed rather than page as specified by manifest. What is the expected behavior? Offline facility for displaying and recording data captured on pages contained within the manifest file when no connection to internet is detected (wifi or 4g) to avoid data loss and allow pages to continue to function when no internet connection available. On reconnection sync with server and data upload. What went wrong? Was working v60 and before. Now displaying dinosaur. Application Cache no longer working. Did this work before? Yes Chrome v60 Does this work in other browsers? Yes Chrome version: 63.0.3239.132 Channel: stable OS Version: 10.0 Flash Version:
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Jan 16 2018
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Jan 16 2018
Have found the cause and fix. When documenting how to replicate the issue above I used v60 and the latest Chrome Canary v65 and noticed the following alert in the Dev Tools console "Ignoring out of scope FALLBACK entries of the application cache manifest because the content-type is not text/cache-manifest". This lead us to change the mime type for .manifest files on our hosting IIS server from "application/x-ms-manifest" to "text/cache-manifest". On doing this the application cache immediately begun to work on v61 onwards.
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Jan 16 2018
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Comment 1 by jon...@googlemail.com
, Jan 16 2018