Category: JS
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Grafana Panel Not Refreshing in Real-time (sometimes)
For one of our clients, we’re using Grafana to display charts for the device data. These charts (panels) are embedded in a React app as iframes. Recently we noticed a strange issue with one of the embedded charts. The bar chart values were updated, but not their colouring. If one would reload the iframe URL,…
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In a React app, I need to press the back button 2 times in order to go to the previous page
In case you have such an issue, and verify that you don’t call history.push() 2 times, check your content for an iframe. TL; DR: React tries to minimize re-rendering and will reuse the iframe element by just changing its src. This will update the history object, which is apparently shared with the main page (and…
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EAS Build Fails on :app:bundleReleaseJsAndAssets_SentryUpload FAILED
I’m trying to migrate a managed expo app from Expo Classic build to EAS. After doing all the changes mentioned on the Migration to EAS Page, I still got an error while trying to build with `eas build -p android` The error was > Task :app:bundleReleaseJsAndAssets_SentryUpload_24 FAILED[stderr] error: project not found Well, the error seems…
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React Drag And Drop not working with AnyDesk
We had a very strange issue with a project we work on. Our React app supports drag-and-drop of devices on a floorplan, using react-dnd. Everything works just fine locally and on our servers, but once the UI is deployed to the production machine (that is accessible via intranet), the drag-and-drop stopped working. Debugging the production…
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React Native Shadow is Missing on iOS but is Okay on Android
In one of our projects, some of the items that had a shadow, was working just fine on Android, but the shadow was missing on iOS. After investigating it, it turned out to be related to the items that had overflow: ‘hidden’, which on iOS resulted in shadow being trimmed. Turns out on iOS, the…
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SentryError: Native Client is not available, can’t start on native when updating expo-cli to 4.x.x (from version 3.22.3)
TL;DR: Update your metro.config.js to use @expo/metro-config based on the latest guidelines (SDK 40+) – It’s funny when you encounter an error in a project, and after spending a lot of effort researching it, to find out that the cause is the same with a totally different error on a very different project. In my…
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ValidationError: “devClient” is not allowed (while using expo and react native)
I ended up getting this error after an unsuccessful attempt to update the expo-cli. The solution was to delete the .expo folder from the project. Good luck! : )
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Updating a React Native/Expo image file does not update the visualization of this image everywhere in the app
I’ve had an interesting problem when saving and updating images in a React Native application built with Expo. I’m building an app that has contacts and images (that are either taken from the phone contact entry or picked from the gallery). The issue was that editing the image at one place and saving it, would…