{"id":197700,"date":"2026-10-13T17:35:33","date_gmt":"2026-10-13T08:35:33","guid":{"rendered":"https:\/\/support.questetra.com\/?p=197700"},"modified":"2026-10-14T10:15:19","modified_gmt":"2026-10-14T01:15:19","slug":"chrome-pdf-preview-err-blocked-by-client","status":"publish","type":"post","link":"https:\/\/support.questetra.com\/en\/faq\/chrome-pdf-preview-err-blocked-by-client\/","title":{"rendered":"An &#8220;ERR_BLOCKED_BY_CLIENT&#8221; Error Appears When Previewing an Attached PDF in Chrome."},"content":{"rendered":"\n<dl>\n<dt>Question.<\/dt>\n<dd>When trying to preview a PDF attached to a Task processing screen or similar in Questetra BPM Suite using the magnifying glass icon, the following message is displayed in Google Chrome:\n<ul>\n<li>(Domain of the workflow infrastructure) is blocked<\/li>\n<li>This page has been blocked by Chrome<\/li>\n<li>ERR_BLOCKED_BY_CLIENT<\/li>\n<\/ul>\n<p>Even with the same version of Chrome, there are devices that can display it and devices that cannot.\n<\/p><\/dd>\n<dt>Answer.<\/dt>\n<dd>\nThis error is displayed when communication is blocked inside Chrome. In many cases, the cause is a Chrome extension. Because installed extensions differ from device to device, results vary by device even on the same version of Chrome.\n<\/dd>\n<\/dl>\n\n\n\n<p class=\"wp-block-paragraph\">The domain of the workflow infrastructure is the domain displayed in the address bar when opening Questetra BPM Suite (e.g., <code>example.questetra.net<\/code>).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Isolating the Cause<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">On Chrome on the device where the preview cannot be displayed, please check in the following order:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Preview in an Incognito window: Only extensions with &#8220;Allow in Incognito&#8221; turned on will run in an Incognito window. If any extensions have this setting enabled, turn that setting off first. Then, open an Incognito window, log in to the workflow infrastructure, and preview the same PDF.\n<ul class=\"wp-block-list\">\n<li>If it displays: The cause is an extension. Proceed to Step 2.<\/li>\n\n\n\n<li>If an Incognito window cannot be opened: Proceed to Step 2.<\/li>\n\n\n\n<li>If it fails to display: Proceed to Step 3.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Identify the extension causing the issue: Type <code>chrome:\/\/extensions<\/code> in the address bar to open the list of extensions. Turn off one active extension at a time and attempt the preview again. When it displays successfully, the extension you turned off last is the cause. Turn non-offending extensions back on, then proceed to &#8220;How to Resolve&#8221;. If it still does not display after turning off all toggleable extensions, proceed to Step 3.<\/li>\n\n\n\n<li>Check extensions installed by an administrator: If there are extensions in the extension list (<code>chrome:\/\/extensions<\/code>) marked with &#8220;Installed by your administrator&#8221;, that extension may be the cause. Since you cannot turn it off yourself, please consult your internal device administrator. If there are no such extensions, proceed to Step 4.<\/li>\n\n\n\n<li>Investigate causes other than extensions: Consult your internal device administrator. When doing so, attach the error screen displayed and inform them that you have confirmed extensions are not the cause in Steps 1 through 3.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">How to Resolve<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Address the extension causing the issue using one of the following methods:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Keep the extension turned off<\/li>\n\n\n\n<li>For extensions like ad blockers that allow disabling operation on specified sites, turn it back on and configure it so it does not operate on the domain of the workflow infrastructure<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Question. When trying to preview a PDF attached to a Task processing screen or similar in Questetra BPM Suite using the magnifying glass icon, the following message is displayed in Google Chrome: (Domain of the workflow infrastructure) is blocked This page has been blocked by Chrome ERR_BLOCKED_BY_CLIENT Even with the same version of Chrome, there [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"single-faq","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_uag_custom_page_level_css":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[5695],"tags":[],"faq_section":[5719],"class_list":["post-197700","post","type-post","status-publish","format-standard","hentry","category-faq","faq_section-5719"],"jetpack_publicize_connections":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"newspack-article-block-landscape-large":false,"newspack-article-block-portrait-large":false,"newspack-article-block-square-large":false,"newspack-article-block-landscape-medium":false,"newspack-article-block-portrait-medium":false,"newspack-article-block-square-medium":false,"newspack-article-block-landscape-intermediate":false,"newspack-article-block-portrait-intermediate":false,"newspack-article-block-square-intermediate":false,"newspack-article-block-landscape-small":false,"newspack-article-block-portrait-small":false,"newspack-article-block-square-small":false,"newspack-article-block-landscape-tiny":false,"newspack-article-block-portrait-tiny":false,"newspack-article-block-square-tiny":false,"newspack-article-block-uncropped":false},"uagb_author_info":{"display_name":"komatsuquestetra","author_link":"https:\/\/support.questetra.com\/en\/author\/komatsuquestetra\/"},"uagb_comment_info":0,"uagb_excerpt":"Question. When trying to preview a PDF attached to a Task processing screen or similar in Questetra BPM Suite using the magnifying glass icon, the following message is displayed in Google Chrome: (Domain of the workflow infrastructure) is blocked This page has been blocked by Chrome ERR_BLOCKED_BY_CLIENT Even with the same version of Chrome, there&hellip;","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9DiIh-PqI","jetpack-related-posts":[{"id":76493,"url":"https:\/\/support.questetra.com\/en\/incident\/bug-20190508\/","url_meta":{"origin":197700,"position":0},"title":"&#8220;Questetra My Tasks&#8221; cannot be used with the Workflow platform that was built newly after March 2018 (Fixed)","author":"Hirotaka NISHI","date":"2019-05-08","format":false,"excerpt":"Fixed Version Version 11.10.1 Affected Version and Operation Workflow platforms of SaaS Edition which were built newly after releasing of v11.6.0 (2018-03-12)To use Chrome extension \"Questetra My Tasks\" Bug Details Occurs in operatingTo attempt to authorize OAuth2 for \"Questetra My Tasks\", the Chrome extensionWhat will occurAn error occurs when trying\u2026","rel":"","context":"In &quot;Incident Info&quot;","block_context":{"text":"Incident Info","link":"https:\/\/support.questetra.com\/en\/category\/incident\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":67383,"url":"https:\/\/support.questetra.com\/en\/addons\/googlecloudprint-print\/","url_meta":{"origin":197700,"position":1},"title":"Submit Print Jobs via Google Cloud Print Service","author":"Hirotaka NISHI","date":"2016-11-07","format":false,"excerpt":"Download GoogleCloudPrint-print.xml Capture Notes All the files attached in the File-type Data Item are printedFile data in various formats can be printed, such as PDF, DocxA delay of up to 30 seconds may occur before receiving a print jobIt is necessary to add a printer in \"chrome:\/\/devices\/\" in advance and\u2026","rel":"","context":"In &quot;Add-ons&quot;","block_context":{"text":"Add-ons","link":"https:\/\/support.questetra.com\/en\/category\/addons\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2016\/11\/gcp-job-submission-header.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2016\/11\/gcp-job-submission-header.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2016\/11\/gcp-job-submission-header.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2016\/11\/gcp-job-submission-header.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2016\/11\/gcp-job-submission-header.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":68592,"url":"https:\/\/support.questetra.com\/en\/versions\/version-1160\/","url_meta":{"origin":197700,"position":2},"title":"v11.6 2018-03-12 Corresponds to HTTP Start which can Receive Request Body as It Is","author":"Hirotaka NISHI","date":"2018-02-26","format":false,"excerpt":"Release Overview Date Release Mon. Mar. 12th, 2018 Changes to be Noted Accessing to Developer APIs in OAuth 1.0 will be abolished Please change to connection using OAuth 2.0, which is available since version 11.1 With the elimination of OAuth 1.0 access to the software development API, the following external\u2026","rel":"","context":"In &quot;Version Info&quot;","block_context":{"text":"Version Info","link":"https:\/\/support.questetra.com\/en\/category\/versions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2018\/02\/version-1160-fi-en.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2018\/02\/version-1160-fi-en.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2018\/02\/version-1160-fi-en.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2018\/02\/version-1160-fi-en.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2018\/02\/version-1160-fi-en.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":102379,"url":"https:\/\/support.questetra.com\/en\/incident\/bug-20210224\/","url_meta":{"origin":197700,"position":3},"title":"Using Chrome, the Auto Login Function is Not Disabled upon Logging Out (Fixed)","author":"Hirotaka NISHI","date":"2021-02-24","format":false,"excerpt":"Fixed version\uff1aVer. 12.3.2","rel":"","context":"In &quot;Incident Info&quot;","block_context":{"text":"Incident Info","link":"https:\/\/support.questetra.com\/en\/category\/incident\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2020\/04\/bug-report-en-1200x675-1.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":68598,"url":"https:\/\/support.questetra.com\/en\/versions\/version-1151\/","url_meta":{"origin":197700,"position":4},"title":"v11.5.1 2017-12-25 Support for TLS 1.0 encryption Discontinued","author":"Hirotaka NISHI","date":"2017-12-18","format":false,"excerpt":"Release Overview Date Release Mon. Dec. 25th, 2017 Changes to be Noted Disable TLS 1.0 encryption (Paid Edition) It is already discontinued in the Free version. If verification is necessary, please conduct it in the Free Edition environment. Internet Explorer 9\/10, you will not be able to use Questetra Internet\u2026","rel":"","context":"In &quot;Version Info&quot;","block_context":{"text":"Version Info","link":"https:\/\/support.questetra.com\/en\/category\/versions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2017\/12\/version-1151-fi-en-1.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2017\/12\/version-1151-fi-en-1.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2017\/12\/version-1151-fi-en-1.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2017\/12\/version-1151-fi-en-1.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2017\/12\/version-1151-fi-en-1.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":79746,"url":"https:\/\/support.questetra.com\/en\/data-items\/file-type\/","url_meta":{"origin":197700,"position":5},"title":"File-Type","author":"Peter Glover","date":"2019-09-30","format":false,"excerpt":"Displays a button for selecting and uploading files.","rel":"","context":"In &quot;Data Items&quot;","block_context":{"text":"Data Items","link":"https:\/\/support.questetra.com\/en\/category\/data-items\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2019\/09\/File.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2019\/09\/File.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2019\/09\/File.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2019\/09\/File.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/support.questetra.com\/wp-content\/uploads\/2019\/09\/File.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/posts\/197700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/comments?post=197700"}],"version-history":[{"count":8,"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/posts\/197700\/revisions"}],"predecessor-version":[{"id":197871,"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/posts\/197700\/revisions\/197871"}],"wp:attachment":[{"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/media?parent=197700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/categories?post=197700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/tags?post=197700"},{"taxonomy":"faq_section","embeddable":true,"href":"https:\/\/support.questetra.com\/en\/wp-json\/wp\/v2\/faq_section?post=197700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}