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6.[When to use onFrameRead and when to use onUniqueRead?](use-of-onFrameRead-and-onUnduplicateRead.html)
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7.[When to use onFrameRead and when to use onUniqueRead?](use-of-onFrameRead-and-onUnduplicateRead.html)
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7.[Do we have to call loadWasm proactively?](call-loadWasm-proactively.html)
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8.[Do we have to call loadWasm proactively?](call-loadWasm-proactively.html)
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8.[What are the differences between updateScanSettings/updateVideoSettings/updateRuntimeSettings?](differences-between-updateScanSettings-updateVideoSettings-and-updateRuntimeSettings.html)
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9.[What are the differences between updateScanSettings/updateVideoSettings/updateRuntimeSettings?](differences-between-updateScanSettings-updateVideoSettings-and-updateRuntimeSettings.html)
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9.[What are the different ways to customize the UI?](different-ways-to-customize-ui.html)
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10.[What are the different ways to customize the UI?](different-ways-to-customize-ui.html)
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10.[How to get the logs for the JavaScript SDK?](get-sdk-logs.html)
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11.[How to get the logs for the JavaScript SDK?](get-sdk-logs.html)
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11.[How do you upgrade to a newer version of the SDK?](upgrade-old-to-new.html)
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12.[How do you upgrade to a newer version of the SDK?](upgrade-old-to-new.html)
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12.[How to change the domain binding of your product key?](change-domain-binding-of-product-key.html)
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13.[How to change the domain binding of your product key?](change-domain-binding-of-product-key.html)
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13.[When is singleFrameMode enabled?](when-singleFrameMode-is-enabled.html)
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14.[When is singleFrameMode enabled?](when-singleFrameMode-is-enabled.html)
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14.[How to get intermediate result images?](get-intermediate-result-images.html)
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15.[How to get intermediate result images?](get-intermediate-result-images.html)
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15.[How to read an inverted image?](read-inverted-image.html)
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16.[How to read an inverted image?](read-inverted-image.html)
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16.[How to read barcodes from existing files?](read-from-existing-files.html)
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17.[How to read barcodes from existing files?](read-from-existing-files.html)
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17.[What file/image formats are supported when reading barcodes from files in local memory?](formats-supported-for-existing-files.html)
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18.[What file/image formats are supported when reading barcodes from files in local memory?](formats-supported-for-existing-files.html)
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18.[How to scan the barcode on a US Driver’s License and get the first name, last name, DOB, etc.?](scan-US-drivers-license.html)
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19.[How to scan the barcode on a US Driver’s License and get the first name, last name, DOB, etc.?](scan-US-drivers-license.html)
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19.[How to add/remove a "beep" sound once a barcode is found?](add-remove-beep-sound.html)
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20.[How to add/remove a "beep" sound once a barcode is found?](add-remove-beep-sound.html)
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20.[How do I create a NodeJS application using the SDK?](nodejs-implementation.html)
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21.[How do I create a NodeJS application using the SDK?](nodejs-implementation.html)
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21.[How to check the version of the JavaScript SDK I am currently using?](check-current-version.html)
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22.[How to check the version of the JavaScript SDK I am currently using?](check-current-version.html)
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22.[How to stop the camera stream from opening right away after DBR-JS demo is loaded? How can you enable the camera on the click of a button?](stop-camera-to-open-right-away.html)
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23.[How to stop the camera stream from opening right away after DBR-JS demo is loaded? How can you enable the camera on the click of a button?](stop-camera-to-open-right-away.html)
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23.[What is the difference between the BarcodeReader class and the BarcodeScanner class? Can they be used interchangeably?](difference-between-barcodeReader-and-barcodeScanner.html)
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24.[What is the difference between the BarcodeReader class and the BarcodeScanner class? Can they be used interchangeably?](difference-between-barcodeReader-and-barcodeScanner.html)
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24.[Why are newline characters not being rendered when displaying the barcode results in a textbox?](newline-character-not-being-rendered.html)
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25.[Why are newline characters not being rendered when displaying the barcode results in a textbox?](newline-character-not-being-rendered.html)
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25.[How to resolve the expected magic word error that occurs when using the JavaScript SDK?](resolve-magic-word.html)
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26.[How to resolve the expected magic word error that occurs when using the JavaScript SDK?](resolve-magic-word.html)
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26.[What are the general troubleshooting steps if an image fails to decode with the JavaScript SDK?](general-troubleshooting-steps-for-decode-failure.html)
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27.[What are the general troubleshooting steps if an image fails to decode with the JavaScript SDK?](general-troubleshooting-steps-for-decode-failure.html)
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27.[What are the differences between the 'speed', 'coverage', 'balance', and 'single' runtime templates?](difference-between-bestspeed-and-bestcoverage.html)
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28.[What are the differences between the 'speed', 'coverage', 'balance', and 'single' runtime templates?](difference-between-bestspeed-and-bestcoverage.html)
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28.[How to avoid incorrect barcode results?](avoid-incorrect-barcode-results.html)
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29.[How to avoid incorrect barcode results?](avoid-incorrect-barcode-results.html)
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29.[How does license tracking work with the three standard licensing options - Per Scan, Per Device, Per Concurrent Device?](how-license-tracking-works.html)
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30.[How does license tracking work with the three standard licensing options - Per Scan, Per Device, Per Concurrent Device?](how-license-tracking-works.html)
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30.[When is a new license spot taken when using a per-device licensing model?](new-license-required-per-device-licensing.html)
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31.[When is a new license spot taken when using a per-device licensing model?](new-license-required-per-device-licensing.html)
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31.[How to get rid of the delay when opening the camera?](delay-when-open-camera.html)
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32.[How to get rid of the delay when opening the camera?](delay-when-open-camera.html)
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32.[How can I hide the laser bar and Dynamsoft message in the default UI of the BarcodeScanner?](hide-laser-message-ui.html)
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33.[How can I hide the laser bar and Dynamsoft message in the default UI of the BarcodeScanner?](hide-laser-message-ui.html)
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33.[Why is the Javascript SDK not recognizing any barcodes on iOS 16.4?](ios-16-incompatible.html)
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34.[Why is the Javascript SDK not recognizing any barcodes on iOS 16.4?](ios-16-incompatible.html)
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34.[How to check the camera permissions programmatically in Dynamsoft Barcode Reader JavaScript SDK?](check-camera.html)
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35.[How to check the camera permissions programmatically in Dynamsoft Barcode Reader JavaScript SDK?](check-camera.html)
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35.[How do I resolve the issue of the Barcode Reader not recognizing any barcodes via video in iOS 16.7 or 17?](ios-17-readability.html)
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36.[How do I resolve the issue of the Barcode Reader not recognizing any barcodes via video in iOS 16.7 or 17?](ios-17-readability.html)
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36.[How to Reduce Duplicate Scans and Optimize Scan Usage?](remove-duplicates.html)
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37.[How to Reduce Duplicate Scans and Optimize Scan Usage?](remove-duplicates.html)
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37.[Why isn't my webcam reading the barcode on my driver's license or ID card?](webcam-support-dense.md)
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38.[Why isn't my webcam reading the barcode on my driver's license or ID card?](webcam-support-dense.md)
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38.[What are the system requirements for running the latest version of Dynamsoft Barcode Reader?](system-requirement.md)
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39.[What are the system requirements for running the latest version of Dynamsoft Barcode Reader?](system-requirement.md)
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40.[How to Enable Specific Barcode Formats with Your License?](enable-supported-barcode-format.md
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39.[How to Enable Specific Barcode Formats with Your License?](enable-supported-barcode-format.md
Copy file name to clipboardExpand all lines: programming/javascript/faq/system-requirement.md
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@@ -22,6 +22,17 @@ The latest version of DBR requires the following features to work:
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> Some browsers like Chrome may grant the access for `http://127.0.0.1` and `http://localhost` or even for pages opened directly from the local disk (`file:///...`). This can be helpful for temporary development and test.
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- Dynamsoft License requires a secure context to work.
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- Set the MIME type for `.wasm` as `application/wasm`
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The goal is to configure your server to send the correct Content-Type header for the wasm file so that it is processed correctly by the browser.
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Different types of webservers are configured differently, for example:
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<sup>1</sup> devices running iOS needs to be on iOS 14.3+ for camera video streaming to work in Chrome, Firefox or other Apps using webviews.
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Apart from the browsers, the operating systems may impose some limitations of their own that could restrict the use of the SDK. Browser compatibility ultimately depends on whether the browser on that particular operating system supports the features listed above.
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Apart from the browsers, the operating systems may impose some limitations of their own that could restrict the use of the SDK. Browser compatibility ultimately depends on whether the browser on that particular operating system supports the features listed above.
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