I use the Chrome dev feature in the desktop Obsidian app a lot.
However, the lack of feature in iOS I am finding a real issue.
Surely there is an equivalent for iOS for the mobile version of Obsidian?
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iOS is the only operating system where that is not possible.
Then only thing use can use is this plugin: https://github.com/KjellConnelly/obsidian-dev-tools but it is not as featured.
Edit: as of iOS 16.4 this is possible, you need a mac for this and a Mac.
Instructions how to enable this: Enabling Web Inspector | WebKit