# Responsive Issue - Opera Browser

**URL:** https://pdfjs.community/t/responsive-issue-opera-browser/1887
**Category:** Technical Support
**Created:** [July 20, 2022, 8:28am UTC](https://pdfjs.community/t/responsive-issue-opera-browser/1887 "2022-07-20T08:28:42Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![system](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/1X/ffbcd25c7d423db8d5acd5db201c272f4db306dd.png) [@system](https://pdfjs.community/u/system)
#### Post date: [July 20, 2022, 8:28am UTC](https://pdfjs.community/t/responsive-issue-opera-browser/1887/3 "2022-07-20T08:28:48Z")

</div>

**Hello, I’m Ron, an automated tech support bot 🤖**

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

Guides:
- [Core engine for WebViewer - Creating your own UI using WebViewer Core](https://pdfjs.express/documentation/ui-customization/core#creating-your-own-ui-using-webviewer-core)
- [Customizing WebViewer UI Popups](https://pdfjs.express/documentation/ui-customization/customizing-popup.8)
- [Customize measurement tools - Set scale and precision with the UI](https://pdfjs.express/documentation/measurement/customize#set-scale-and-precision-with-the-ui)

APIs:
- [UI - disableClearSearchOnPanelClose()](https://pdfjs.express/api/UI.html#.disableClearSearchOnPanelClose__anchor)
- [Core.Tools.Tool - contextMenu(e)](https://pdfjs.express/api/Core.Tools.Tool.html#contextMenu__anchor)
- [Core.DisplayModeManager - setDisplayMode(displayMode)](https://pdfjs.express/api/Core.DisplayModeManager.html#setDisplayMode__anchor)

Forums:
- [Express functionality questions](https://pdfjs.community/t/express-functionality-questions/1189/1)
- [PDF.js Viewer search function on mobile](https://pdfjs.community/t/pdf-js-viewer-search-function-on-mobile/1367/1)
- [Scroll Issues With Tablet:](https://pdfjs.community/t/scroll-issues-with-tablet/965/1)

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