Make app work without olm #579
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MadLittleMods
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Feb 24, 2022
…hrowing and stopping all JavaScript Related to #579 ``` Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'deriveBits') at new Crypto at new Platform at mountHydrogen ```
MadLittleMods
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Feb 25, 2022
…hrowing and stopping all JavaScript Relevant error if you crypto is used in a non-secure context like a local LAN IP `http://192.168.1.151:3050/` ``` Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'deriveBits') at new Crypto at new Platform at mountHydrogen ``` For my use-case with https://github.com/matrix-org/matrix-public-archive, I don't need crypto/encryption at all. Docs: - https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts - https://developer.mozilla.org/en-US/docs/Web/API/Crypto/subtle - "Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers." --- Related to #579
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Currently, the two awaits of the olmPromise don't handle the error that it can throw when the olm file is not found (if we want to distribute a copy of hydrogen without olm, for example for legal reasons). We could probably await the olm promise once at the beginning of starting with login or an existing session and handle the error there, and if olm is not present, don't look for dehydrated devices, ... might need some checks if olm is present deeper down the stack as this scenario has been taken into account but not really tested.
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