Patrick

Issue with LocalStorage Saving Message History in Dify's Iframe

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### Self Checks - [X] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [X] I confirm that I am using English to submit this...

[Suggestion] Allow string literals (e.g., in map["key"]) within interpolation expressions

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### Motivation / Problem Currently, the official documentation states that string interpolation expressions (`\{...}`) cannot contain double quotes (`"`). This is a reasonable limitation, but it makes a very common...