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feat: disable cookie/localstorage access under restricted sandboxes#729
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feat: disable cookie/localstorage access under restricted sandboxes#729Marc-Andre-Rivet merged 1 commit intodevfrom
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| if (props.storage_type === 'local') { | ||
| this._backstore = _localStore; | ||
| this._backstore = new WebStore(window.localStorage); |
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The error message we get when trying to access localStorage is fairly informative / helpful:
Uncaught DOMException: Failed to read the 'localStorage' property from 'Window': The document is sandboxed and lacks the 'allow-same-origin' flag.
I don't think it needs to be improved to make sense to an app developer and as such can be exposed as-is.
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Created plotly/dash#1088 for follow up. |
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@josegonzalez Looks good. Just need two more things:
- a changelog entry under
## Unreleased-->### Changed - a branch update
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When dash is embedded into an iframe with a sandbox attribute that only has allow-scripts, cookie/localstorage access is disabled and dash-core-components fails to load. As such, we need to restrict our cookie/localstorage usage by disabling functionality. This patch moves the disabled functionality to a place where it doesn't get autoloaded regardless of usage, allowing dash-core-components to load in very restricted iframes.
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…lotly#729) When dash is embedded into an iframe with a sandbox attribute that only has allow-scripts, cookie/localstorage access is disabled and dash-core-components fails to load. As such, we need to restrict our cookie/localstorage usage by disabling functionality. This patch moves the disabled functionality to a place where it doesn't get autoloaded regardless of usage, allowing dash-core-components to load in very restricted iframes.
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When dash is embedded into an iframe with a sandbox attribute that only has allow-scripts, cookie/localstorage access is disabled and dash-core-components fails to load. As such, we need to restrict our cookie/localstorage usage by disabling functionality.
This patch removes the disabled functionality in a graceful manner, allowing dash-core-components to load in very restricted iframes.