Use of the extension blocks Chrome from launching PDF document viewer in screen

* **What Operating System?**
* Windows 10 Version10.0.19044 Build 19044, running on Dell Inspiron 7506 2n1

* **What version of Chrome?**
* Google Chrome Version 106.0.5249.121 (Official Build) (64-bit)

* **What version of Recorder's Assistant (GitHub version or Chrome Store version)?**
* Chrome Store - GenderMag Recorder's Assistant, 0.4.6

* **What steps will reproduce the issue?**
a. Start chrome, enable GendeMag extension
b. Go to http://gendermag.org/
c. In bottom left of web page under GenderMag Practices & Pitfalls, select Practices and Potential Pitfalls Handout
d. View result of blank screen
e. Hit the back button
f. Right click on the PDF link again but this time select launch in new incognito window
g. View PDF correctly launched
h. Turn off extension and reload the web page http://gendermag.org/
i. Click the PDF
j. View PDF correctly launched in current tab
k. Also reproducible in other web pages with PDF link

* **What would you expect to be the outcome?**
* An in-browser PDF viewer should appear
* **Actual result**
* A blank screen appears (see screen shot below)

* **Any additional details/screenshots to help people to fix any potential bugs?**
* No other extensions running

**Result when launching from regular Chrome window running extension**

**Initial screen with extension tool active, showing link location and expected path to PDF**

**Result when launching in new incognito window**