Cannot read file content in some browsers

Trying to view https://salsa.debian.org/salsa-ci-team/pipeline/blob/master/README.md in lynx only yields the following:

-----BEGIN screenshot-----
←←←                                              README.md · master · Salsa CI Team / pipeline · GitLab (p1 of 5)
   [1]Skip to content

[2][gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==]

     * [3]Projects
     * [4]Groups
     * [5]Snippets
     * [6]Help

     * [7]____________________ (BUTTON)
          + Loading...
     *
     *
          + [8]Help
          +
          + [9]Submit feedback
          + [10]Contribute to GitLab
     * [11]Sign in

   (BUTTON) Toggle navigation

   P
   pipeline
     * Project

     * [12]Project
     *
     * [13]Details
     * [14]Activity
     * [15]Releases
     * [16]Cycle Analytics

     Repository
     * [17]Repository
     *
     * [18]Files
     * [19]Commits
     * [20]Branches
     * [21]Tags
     * [22]Contributors
     * [23]Graph
     * [24]Compare
     * [25]Charts



   Issues 11
     * [26]Issues 11
     *
     * [27]List
     * [28]Board
     * [29]Labels
     * [30]Milestones



   Merge Requests 3
     * [31]Merge Requests 3



   CI / CD
     * [32]CI / CD
     *
     * [33]Pipelines
     * [34]Jobs
     * [35]Schedules
     * [36]Charts



   Registry
     * [37]Registry



   Wiki
     * [38]Wiki



   Snippets
     * [39]Snippets



   Members
     * [40]Members

   Collapse sidebar (button) Close sidebar

     [41]Activity

     [42]Graph

     [43]Charts

     [44]Create a new issue

     [45]Jobs

     [46]Commits

     [47]Issue Boards

   (button) Open sidebar
     * [48]Salsa CI Team
     * [49]pipeline
     * [50]Repository

   (BUTTON) master
   Switch branch/tag (BUTTON)
   [51]____________________
     * [52]pipeline
     * [53]README.md

   [54]Find file
   [55]Blame[56]History[57]Permalink
     * [58]Iñaki Malerba's avatar
       [59]Update README.md · 0c1eeae6
       [60]Iñaki Malerba authored Feb 03, 2019
       0c1eeae6
       (BUTTON)

   README.md (BUTTON) 3.92 KB
   ([61]BUTTON) ([62]BUTTON)
   (BUTTON)
   [63]Edit[64]Web IDE

Replace README.md

   (BUTTON) ×

   Attach a file by drag & drop or [65]click to upload
   Commit message

   [66]Replace README.md___________________________________________________________________________
   [67]____________________________________________________________________________________________
   [68]____________________________________________________________________________________________
   (button) Replace file [69]Cancel
   A new branch will be created in your fork and a new merge request will be started.
-----END screenshot-----

Nowhere does the actual content of the file show.